Here’s a list of ActivityPub services that are not Twitter-like, along with a description of what each service does:

Pixelfed - image sharingPeertube - video sharingNodeBB - forumsLemmy - forumsWriteFreely - blogFriendica - Facebook-like macroblogHubzilla - macroblog / CMSFunkwhale - audioActivityPub for WordPress (Plugin) - CMSActivityPub for Drupal (Plugin) - CMSActivityPub for xwiki (Plugin) - wikiActivityPub for Discourse (Plugin) - forumsKbin - forumsMbin - forumsBookwyrm - book reviewsOwncast - video streamingPinetta - pinsNextcloud - data storagePlume - blogCastopod - podcastsMobilizion - eventsFlohmarkt - classifiedsLoops - video sharingGancio - eventsPiefed - forumswafrn - Tumblr-like blogLotide - forum / link aggregatorPostmarks - social bookmarkingManyfold - 3D print sharingGhost - CMSBrutalinks - link aggregator

There’s a lot more stuff, so let me know what I may have missed.

@WoCeTake I consider Pleroma to be a Twitter-like service. So no, I didn’t forget it.