Souls Network - Pixel Souls on Pixelmon Reforged 9.1.3 for Minecraft 1.16.5. If you want a Pixelmon server with its own custom twist, this is the place to check out. It brings a mix of classic catching and battling with its own progression and endgame loop, so there is always something to work toward.
You can expect PokeSouls, custom raids, custom Pokemon and starters, plus a progression rank system that keeps the grind moving. The server also uses its own currencies, Souls, BP, and Frontier Points, and the whole thing is built around reaching the Battle Frontiers end game content.
It is a good fit if you like Pixelmon, PvE, and PvP with some economy progression mixed in. If you need help getting set up, there is an install guide available, and the server is running at play.soulsnetwork.net.