Prosperia is an SMP that tries to feel alive with custom terrain and hand placed structures so exploring is actually fun. It is still survival at the core but it adds more stuff so you always have something to work toward.
The server has land claims so you can build without getting bothered and keep long term projects safe. Progress is meant to be earned so you do not just jump to max power right away.
There are advanced enchantments and you can fully disenchant too. Farming is deeper with PyroFarming and fishing has unique rewards with PyroFishingPro. You can level up with MCMMO and use jobs for steady income.
It also has an auction house and a player driven economy. You can use safari nets to move mobs around and there are rideable and flying pets. For grinders there are custom spawners plus auto crop planters and upgradable hoppers.
It is run by a small team that listens to feedback and keeps doing steady updates.
