Yandex
Russians use it a lot. Yet Another Indexer".
Change the location to the United States, and set the search to unlimited.
CC Search
Check out some copyright-free images, audio and video.
Ecosia
Ecosia - the search engine that plants trees
DuckDuckGo
my
MillionShort
Million Short - What haven't you found?
This can choose a variety of filter conditions, such as region, ranking and so on.
wikiHow
wikiHow: Your Reliable Guide to Everything
federated search
Peekier
Qwant
Qwant - The search engine that respects your privacy
French search engine.
INFO.COM
Taolianke
Amoylinker - Aggregation search engine for external link resources
Google Book Search
SimilarWeb
Here you can query the commonly used search engines in each country:
Search TV and movie BGM and other resources:
Find Music From TV and Movies | Tunefind
https://archive.org/details/short_films
Search icon:
Free Icons and Icon packs | +500,000 icons to download - Findicons.com
Image search:
Microsoft Academic:
Quote from netizens:
1.论文搜索类
有些内容是需要从图书馆的资源中进行访问的，或者挂VPN来进行搜索。
1.1中文文献搜索
中国知网：https://www.cnki.net/
万方数据库：http://www.wanfangdata.com.cn/index.html
百度学术：http://xueshu.baidu.com/
1.2 外文文献搜索
首推爱思唯尔：https://www.sciencedirect.com/
科学引文（web of science）：现在称为SCIE科学引文索引数据库
1.3 其他
直接谷歌https://www.google.com/
谷歌学术是个很好的选择，有些内容可以进行下载，链接如下：
https://scholar.google.com/
下载文献还有一个神器，这个网站旨在打破文献付费的惯例，相信用过之后就会感受到它的强大，这个是由俄罗斯的大牛做出来的：https://sci-hub.se
2.网盘和书籍搜索
2.1 网盘搜索强烈推荐这个网站，里面有各种网盘的搜索和电子书的搜索，相信会有很多帮助的：http://magnet.chongbuluo.com/
2.2 计算机方面的
初学一些计算机语言，可以试试菜鸟教程：https://www.runoob.com/
这个我主要是从脚本之家这个网站来寻找资源的：https://www.jb51.net/
如果找代码的话，我是从github上去看的，应该说应有尽有了 https://github.com/
3.自学课程
3.1 如果对一些知识比较感兴趣想去学习的，以下几个网站有很多帮助的
中国大学MOOC: https://www.icourse163.org/
网易云课堂：https://study.163.com/
哔哩哔哩（可能会觉得是不是开玩笑，实际上里面的学习资源真的很多，不止是鬼畜素材，看你怎么用了吧）：https://www.bilibili.com/
4. 有关下载
4.1 常规下载工具：使用迅雷、QQ旋风或者P2P这些网上都有的，IDM下载也很快（internet download manager, IDM），只是需要配置，比较繁琐。
4.2 百度盘下载
盘下载真心好用，软件也只有几兆，不过就是不知道以百度的处事方式还能用多久：http://pandownload.com/
5 英语方面
5.1 阅读的话，很多大佬都推荐华盛顿邮报，说是对阅读写作很有帮助，自己也在尽力去看，网址是https://www.washingtonpost.com/
还有经济学人：https://www.economist.com/
国家地理杂志：https://www.nationalgeographic.com/
华尔街日报：https://www.nytimes.com/
5.2 英语听力
这个有的说是TED演讲有帮助，自己没有坚持下去，https://www.ted.com/
还有voa，这个听力还是不错的，报纸就算了: https://www.51voa.com/Other searches:
Sogou, 360 Search, Zhihu, Quark, Yahoo, Youtube, Bilibili, WeChat Souyisou, Taobao, JD.com, Pinduoduo, Baidu Netdisk, etc.
China Search: National Authoritative Search Engine (chinaso.com)
HowNet: If you want to understand the ins and outs of a matter, you can basically understand it by reading the first few chapters of the master's and doctoral thesis.
Bing: Bing can find out who is in the picture by intercepting a certain frame of a video.
Youquhome Home: Bookmark the most interesting websites in the world (youquhome.com)
Juice Rankings: Juice Rankings- All kinds of rankings
Magi: Magi
Geek Search (geekbang.org)
Semantic Scholar: Semantic Scholar, Microsoft. Semantic Scholar | AI-Powered Research Tool
MEZW：http://so.mezw.com/
Insect Village: www.chongbuluo.com
America Online: https://search.aol.com/
Google mirror: Some google mirror urls collected | Technology brings you and me closer!
German search: Fireball https://fireball.de/
Search engine and human edited web directory KartOO: http://www.kartoo.com/
WebCrawler Search: https://www.webcrawler.com/
Dogpile.com: https://www.dogpile.com/
Metacrawler: https://www.metacrawler.com/
Infospace: https://infospace.com/
Shodan Search Engine: Shodan Search Engine
Incomprehensible search: Wolfram|Alpha: Computational Intelligence
Longxuan Navigation: Longxuan Navigation - Be a useful navigation
Jushen Shop Navigation (jspoo.com)
Seznam: Czech
Bookask Search - the leading digital media and reading platform in the publishing industry (bookask.com)
Super Star Journal Search: Super Star Journal
Jiumo Search Jiumo Search - Document Search Engine (jiumodiary.com)
ZoomEye ("Zhong Kui's Eye") cyberspace search engine
FOFA Cyberspace Mapping System: Cyberspace Mapping, Cyberspace Security Search Engine, Cyberspace Search Engine, Security Situational Awareness - FOFA Cyberspace Mapping System
Huisou-Search Navigation (huisou.org)
Sowang Almighty Search - Search Engine Encyclopedia! Major search engines one-click search! (sowang.com)
Video resource search: teacup fox
Movie List Search: Shadow Cat MVCAT
Internet Memes Search: Chick Dictionary
Check the report (seedsufe.com)
facial expression package - fabiaoqing.com
lconfinder: It is mainly used to search for logo pictures. There are all kinds of logo pictures, and it is more professional.
TinEye: Mainly used for pictures, you can search by uploading pictures or entering picture links.
Science Popularization China_Making scientific and technological knowledge popular online and in daily life (kepuchina.cn)
Koovin Search - Create a free and open source literature resource sharing platform (koovin.com)
West Cloud English Sentence Database
United search engine (gobaidugle.com)
Coursade - Discover online learning：Coursade - Discover online learning
Movie Dog - professional movie search engine (dianyinggou.com)
Awesome Wallpapers - wallhaven.cc
One-click search for free copyright images - image search tool (logosc.cn)
National Library Reference Alliance (superlib.net) National Library Reference Alliance
Webopedia: IT & Computer Dictionary, Study Guides & Reviews： Webopedia: IT & Computer Dictionary, Study Guides & Reviews
Yummly: Personalized Recipe Recommendations and Search 做菜：Yummly: Personalized Recipe Recommendations and Search
AnywhereAnything (lackar.com)：AnywhereAnything
National Center for Philosophy and Social Sciences Documentation (ncpssd.org)
Big Data Navigation--Hao.199it.com
Unisys Navigation - Learning Design Starts Here! (uisdc.com) UIS Navigation - Learning Design Starts Here!
Dobby saves the world--Professional search site for emoticons
Book search website: http://libgen.rs/
图书： Books and e-books - Research Guide for Mathematics - Oxford LibGuides at Oxford University Books and e-books - Research Guide for Mathematics - Oxford LibGuides at Oxford University
图标：The Stocks 2 - Best royalty free stock photos, videos, mockups, icons and fonts! The Stocks 2 - Best royalty free stock photos, videos, mockups, icons and fonts!
SummaryWrap up
Some of these search engines have their own crawlers.
Fighting back against monopolies and hegemonies~
reference:
Very Alternative Search Engines - SteGriff