Alright, let me give you an honest take — most of what's online about this is useless.
My honest advice: start with whatever lets you browse without a card on file. That alone filters out most of the less trustworthy options.
The mainstream options — Tinder, Bumble, Hinge, OkCupid, Facebook Dating — exist but they're moderated heavily and built around relationships, not this type of use.
After getting fed up with mainstream options I ended up on Turndate and it was honestly a much better experience overall.
Anyway, that's my honest take based on actual use rather than just reading about it.