@nik Liberapay is great, they are doing something different than us and Patreon. Currently on Liberapay you can only accept donations and there are no locked posts, which are legally 'digital goods' that we automatically calculate taxes for. There are several donations-only services with no fees at all for this reason.
A comparison to #OpenCollective somewhere on the site would be nice.
OC is open-source and Comradery might be as well (offering the service is much more involved than just offering the code).
With that don't think mere microblogging, but building on an AP vocab extension that fits your application type. For inspiration on specialized apps see: https://git.feneas.org/feneas/fediverse/-/wikis/watchlist-for-activitypub-apps
Liberapay themselves opened an issue on alternative payment suggestions in 2019, it's still open now:
If you have suggestions please do let them know, they are literally asking for alternatives.
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