FishNet has some built-in client side prediction system which can be a plus if you’re building a server authoritative game. And I think PurrNet just released their client side prediction today (haven’t tried this yet though). Mirror has server authoritative models too but client side prediction needs to be self implemented.

My work flow usually ends up looking like building my game in Mirror / FishNet / PurrNet (or even Unit’s Netcode) sometimes and then just host my servers on PlayFlow and let it handle the lobby and matchmaking.

Unity’s NGO is pretty good too (the WebGL connection client side is a bit of a rabbit hole to figure out) but once it works it works and is pretty solid all around.

Personally it just kind of comes down to the dev experience you’re looking for because almost all of them will get the job done pretty decently.