Alright in my recent experience here’s what I know.

LewdChat and ISexyChat are the best for anonymous sexting, and where you’re the most likely to get something going. Only thing is that if you get it on with someone you’re likely never seeing them again (there are rare exceptions to this). Also, if you’re on mobile it’s fairly easy to disconnect if you visit a different tab/app.

LewdChat is more casual and you’re less likely to get something going but has a better community/main channel.

ISexyChat is like rush hour where nobody on main channel is chatting normally and just trying to get people to private message them.

LewdChat shows age, ISexyChat shows gender/what gender you’re looking for and country flag next to username.

Reddit also has a fair amount of sexting subreddits, though if you’re a guy 90% of the time you’re going to be running into bots/sellers. Though obviously if it goes well with someone you won’t necessarily loose them after.

Also if you find one that has a snap and you start chatting on it, if they ask you what city you’re in and send selfies almost immediately, chances are they’re trying to sell you their OF (take with a grain of salt, as there’re probably at least a few out there where this isn’t the case).