Patreon has its own issues. I wished it would be less dominant in the English-speaking donation 'market'.
I was hoping that Flattr would be able to provide a Chromium-free, 'Brave-like' experience, especially with their browser plugin, but if anything it has been losing popularity (despite being years older than Patreon!).
For a reason that escapes me, they even recently decided to officially remove their plugin, so now they can even hardly be differentiated from the other Patreon-likes.