So this origins SMP is probably the best option for you, we already have more than 3000 active players and it would be really nice if you could be one of us.
It has only origins relationed mods so you will have a vanilla experience.
There are over 35 different origins(9 original origins + moborigins + origins datapacks) in the server.
This SMP is hosted with a professional server so you should not experience downtime or lag.

If you are interested join our origins smp discord server: Server Invite

Our Origins SMP community server was created to share experiences from our origins server, to socialize and share ideas. We are a responsible community and we respect all our members, and we expect the same from everyone.
connect Origins SMP