Looking for a Chill Server (18+)

I've(20FTM) been playing Minecraft lately and I really want to play with others, but I'm not very good when it comes to grinding or PVP. I'm looking for a chill SMP, RP, or Building-focused server/realm to play on and make friends.

Emphasis on the friends part. I'm really looking forward to making friends who are interested in RP or building.