There's a Fediverse alternative to #Reddit called #Kbin. More info at https://kbin.pub
Still VERY new, not many servers yet, two so far in English:
https://fedia.io
https://kbin.social
No app yet, use it through these sites. Subreddits are called "Magazines". You can interact with magazines from other servers.
Coders help Kbin at https://codeberg.org/Kbin/kbin-core, non-coders donate at https://www.buymeacoffee.com/kbin
(Sorry to people bored of this, had many requests to put info in one place)
p.s. Kbin is part of the Fediverse. You can follow Kbin accounts and magazines from Mastodon etc, and follow Mastodon etc accounts from Kbin.
However, the cross-platform federation doesn't seem to be working properly yet (bear in mind the project is only a few months old!).
There's also a complication about the Kbin.social server being overwhelmed over the last few days. Kbin.social has had to use Cloudflare to cope with the overwhelming load, which is known to mess up federation.
So that's why I cannot seem to follow magazines from here just yet? (There are no search results coming up when looking up the handle.)
I'm not sure, the situation is still really unclear while the project is so new.
The main reason it's getting so much attention now is Reddit imploding, I don't think the lead developer expected to suddenly have to do all this at once!