I re-launched a website today Chinese Flashcards: https://www.hskflashcards.com/ - navigate cards with swipes on mobile, hjkl and arrow keys. It's in a very early state at the moment, though
- CLI tool for looking on hanzi characters here: https://cihai-cli.git-pull.com/
I split it into library components so you can use the stuff under the hood piecemeal if you do Python:
- https://cihai.git-pull.com/: python library for accessing cjk data
- https://unihan-etl.git-pull.com/ extract data from the Unicode’s Han Unification (UNIHAN) database (https://unihan-etl.git-pull.com/unihan.html)
zhihu.com alternative to quara.com
weibo.com => twitter.com
baidu.com => google.com
douban.com => imdb.com (Why not watching some funny Chinese TV shows :))
douyin => tiktok
You may not retrieve correct information/opinion there, but it's a good way to learn Chinese language.