Controversial take, I don’t think mods need to be paid. You don’t have to be a mod, you’re actively choosing to be a moderator. If you aren’t getting paid for your work and dislike that, then don’t do it. There’s always going to be someone willing to do it for free, like a hobby.
Nostalgia-wise it’d be Phantom Hourglass, it’s super underrated, super fun game! But otherwise it’d be the Switch duology, they’re incredible games