I'd get an MSI MAG B550 TOMAHAWK of some sort and chuck all your current stuff in there and call it a day. It's been the budget industry champ for Ryzen 3000 and 5000 chips for 5 years now.
It has lots of power with a rock solid Mosfet and there are only a couple of RGB lights that can be set to white and static which matches the decor pretty well. It's currently 130USD on Bezos 'R' US.