Hey buddy, we opened our server about a week ago, it's a factions/economy/spleef/parkour/(soon kitpvp) and more, mature/friendly staff, and a relatively new map. We're looking for players too. You can join us if you want: 4dgminecraft.nitrous.it (1.15.2)
We have a large playerbase of around 30-60 people online at one given time. We've just moved to a new beefy machine which means we can handle a large player count without lag.
We've been up for 6 years and have no plans to close. Our current map is actually only 3 months old. You can find plenty of empty spots with /wild. We won't be having any more map resets and will solely by working on resource worlds when required. (so you can rest assured any builds won't be destroyed.)
We don't have land claim and work on a trust system. Nobody is allowed to build within 100 blocks of eachother. We have a strong staff team who are fair and always around to help you. If someone did build too close, they'll move it. Nonetheless, we're anti-grief. All of your items and mobs can be locked - You can also add your friends to the protections. Any grief can be rolled back by staff members.
The community and server event schedule is something we get compliments for, so check it out if you'd like and see if it's for you. Our spring event has just ended, but within a week our Easter Event will be up!