Good anti-cheat plugins for Paper/Spigot 1.21.8?

I'm going to be hosting a public* server which has PvP enabled (not strictly encouraged or incentivized, but allowed in general). I've read a few posts on Reddit & the Spigot forums but some of them are a little old and might not mention newer ones.

Here's what I've found out so far:
- ACs designed around movement checks aren't very good at combat checks
- ACs designed around combat checks aren't very good at movement checks
- Paid AC isn't necessarily better (though it may receive more frequent updates or feature better support), but I'm not against considering it if there's a lot of positive feedback.

The ones I've heard of are Vulcan, Themis, Grim, Matrix, and a couple other ones that are subscription based (and I'm not really interested in that), but I'm interested in what other ones exist, or what combinations of them have worked well for others. Thanks!

-# *This server is public, but requires being in a Discord server that I own/moderate, and we have logs of linked accounts to punish people who are overly disruptive to the experience