FediTips , (edited ) 
The Reddit-style Fediverse platform Kbin seems to have ceased development 😔
HOWEVER... a fork called Mbin is continuing Kbin's work and is now very active! 👍
Techy people can find out more from Mbin's documentation:
...and source code:
➡️ https://github.com/MbinOrg/mbin
There are links to Mbin server lists on the Github page, for example there is a major Mbin server at https://fedia.io