I've been searching for a half way decent server for over 2 hours now that's just simple faction pvp without all this pay to win BS like fly and 80 protection armor like that's just not it. It's been forever since I seen the classic faction where killing other factions reduced their power and allowed you to take their land accordingly like where did they all go? It seems today people only want instant gratification servers or super op pay to win stuff and these massive hub servers with flashy banners are all scams like that. If anyone has a server I'd happily bring me and all my friends on board to come play.
Can't say I'm a factions guy these days, but the pay-to-win sort of stuff is quite prevalent even on other server types. Most of them come packed with a store selling (more often than not) perks that disadvantage normal players. Crates are another thing that saturate servers these days, not to mention the flashiness of server banners, in-game prefixes, and even the holograms plugin that appeared at some point. These kinds of things have been why I've yet to find a server to dedicate myself to after so long, and is why I just started my own whitelisted vanilla server today. At least with vanilla servers there are no commands or features to monetise, and so players usually play the game for what it is. Players won't expect any perks, and so everyone is on a level playing field and can just have fun.
Honestly, I still have a heavy nostalgia for old-school factions and towny servers to this day that I've unfortunately given up on fulfilling. Let it be a fond memory of years gone by.
I wish you good luck in finding a place though. Perhaps you could consider making your own server if you have no luck as I'm sure there are many of us out there who would enjoy it. I'd promote my server but I don't think it's what you are looking for. It's very pve and building focused.