Looking for advice on running a home "server"

We have a PC, a laptop, and a Nintendo switch. Currently we have two Java edition copies and nothing on the switch. I'm willing to buy bedrock to make this work.

Ideally we have a set up where we can all 3 at together on the same server. Is just connecting through LAN the only way, or can I do something with running a server on my Pc that we can always connect to?

Looking just for general advice on how to get that done especially with the switch