Currently subscribe to Reinbach's (Mostly known for the comics 'Switch' and 'This Romantic World')
Previously have subscribed to Patreon for:
Pan
Ice Bear
SammyNona (Erotica authors all active on EMCSA).
For the most part, I've used it as a tip jar, and early/exclusive access to some stories has been a nice benefit.
One major downside to Patreon is its abysmal archive system. If you're looking for posts more than a few weeks old, the site tends to crash a lot. They don't seem to have any intention of fixing it. And of course, they ban users for some types of content I enjoy, so I know some writers have to be particularly careful about what they post to or link from their Patreon, or indeed post anywhere else under the same name.
Some authors do extra leg work and keep their own master links of updates, which is appreciated.
Oh, I'll mention in Ice Bear's case, I wasn't too fond of how the tiers were arranged. I think a lot of the story content was paywalled at $20 US/month, which was enough for me to dip into occasionally, but not to remain a regular subscriber. (And Ice Bear is very up front about everything that is included in each level, including a master list of content, so nothing duplicitous or anything shady about it.)
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Further edit as I think of things
All the folks I mentioned up there have great communication with their audience. Release schedules might vary, but it was always clear why.
Pan's release schedule was consistently twice per month, which was great, but he's. locked himself in a charge per update (I think he has it set at 10k words) rather than a monthly charge, so for all practical purposes the monthly charge is twice the listed rate. (Though I suppose with Patreon, you can limit the amount of charges per month per creator you're willing to pay for.)