Simple game networking solution

I am new to networking and see that with UNET being depreciated, it is far from obvious which solution to use.

In my particular case i have a very simple mobile app like Bomberman where the players can be on one of about 400 tiles and there are a few power ups to keep track of and that is all.

I am not too concerned about cheating in this casual game (although i would prefer if there was none). I am far more concerned about the players being able to self-host so if the game makes no money, it can still be played. I think i am right in saying the new official Unity solution will require dedicated servers by default so it probably is not right for me.

Which leaves me with the question of what is recommend for a simple self-hosted network solution?