From what I can tell, it seems many other creators impacted by this have moved to either PIxiv Fanbox, SubscribeStar, or both.
I would imagine SubscribeStar to be the easiest to transition to from Patreon, as it is the most similar, and they are okay with NSFW content generally. I'm not sure what their stance is on the AB/DL theme in particular though.
The crux of the issue isn't necessarily Patreon or similar sites, but rather the banks, payment processors, and so on, which have the strict policies in place of what they will and won't accept.
These entities hold funding hostage, even from the big name sites like Patreon, if they don't play by their rules. And in terms of adult content, such rules are often prudish, outdated, and discriminatory.
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Thanks for your input. SubscribeStar sound like the most popular option, but I'm very warry because I heard very concerning things about it and fetish content (even if vanilla NSFW is somewhat okay), and like you pointed out, I feel like it could get into the same situation given the payments processors behind are probably the same.
The issue I'm having is going for a less popular option (either an accepting provider or a website that I'll manage myself) will definitely draw less people toward it simply by the virtue of going for a less know headline. Hence, I fear that I'll have to choose between audience and safety. I'm still giving myself some time for things to cool down before making my choice, but every input is valuable.
Overdoll (https://overdoll.com/creators) (Help Page: https://overdoll.com/help) seems promising for digital artists, and I assume it could work for game creators as well, but it is currently invite-only, so I'm not sure it's quite ready for widespread adoption just yet. You could give it a try though and see if they allow you onto the platform? Their ToS and Community Guidelines both seem pretty reasonable and accepting. They apparently use Paxum (https://www.paxum.com/) for payment processing.
If it fully opens its doors someday to public registration, it may be a very viable option in the future, as there are no upfront costs for creators to use their platform, and they only take a fee of sales instead. For now though, it may just be like you mentioned of going with a payment processor that allows adult content, even if they are not as well integrated online.
It's a strange situation really. There needs to be a payment processor that's okay with taking "high risk" adult content related payments and dealing with the high rate of chargebacks etc. but that's also well integrated into various online platforms right next to Paypal, Stripe, and so on, to make it as easy as possible for people to choose it on the more popular sites and services. I'm sure it's all more complicated than I understand though, easier said than done.