BoxxyMC Survival is a Java and Bedrock crossplay server, so you and your friends can hop on together no matter which edition you're using. If you want a survival server that keeps things simple but still gives you a little extra to work with, this is the place to check out.
You can jump into Custom Item Survival for a more unique survival setup with special items and gear, or play Diamond Economy Vanilla SMP for a more classic SMP feel where diamonds are the currency. So whether you like a twist on survival or a more vanilla-style world with an economy, there's something here for both styles.
The server also mixes in mini-games and community events, and the owner mentions things like Skyblock, factions, parkour, and more in the rotation. It's built around a community feel with regular updates, so there should usually be something going on besides just mining and building.