I found a small semi vanilla SMP that is in testing right now.
They say the real start is in about a week so it feels like a soon to launch server with a small group vibe.
Small Semi Vanilla SMP Starting Soon
GG.MINEWIND.NET New Server IPSunset Retreat 18+ Seasonal Vanilla SMP
Sunset Retreat is an EU based seasonal SMP with a vanilla plus style. It is meant for players who are 18 or older and want a chill place to play.
The community is whitelisted and focused on being welcoming and inclusive. It is made to feel like a break from daily stress while you build and explore.
The server keeps things mostly vanilla with a few quality of life add ons like voice chat player and mob heads bedrock compatibility and a live map. There is also a diamond economy with player run shops so people can trade goods and services.
The owners stay engaged with updates and management and they actually play too.GG.MINEWIND.NET New Server IP