First, you have LethalConfig which helps you configurate most mods ingame. You sometimes might need to use common sense to understand what makes mods server-sided or not.

The mods i don't recommend configurating are: GeneralImprovements, CozyImprovements, CruiserImproved, Loadstone, Matty_Fixes_Experimental.

Everything else is configurable and will still be client-sided (I think).

Thanks for reading and goodluck!