I found a prison server that has been worked on for months by the owner and a developer. They are trying to remake the prison style like TDKPrison.
It has custom plugins like a prison core and explosive picks. There is also a token shop and a shop for selling items.
The hub is made for 1.20.6 and it supports multiple versions too. They are asking players to join and give feedback.
Months Of Work Prison Remake
GG.MINEWIND.NET New Server IPBedrock OG OP Prison With Active Devs
This is a Bedrock OG style OP Prison server that is all about a real grind. It feels like one of those old school prisons where you actually have to work for progress.
The dev is active and the server gets updated a lot. They just did a big round of fixes. There are more than twenty custom enchants that have been fixed and rebalanced. Combat feels cleaner now because knockback got cleaned up too.
Outposts were adjusted so they feel better to fight over. The shop got updates and now splash pots are part of the game so fights and grinding feel more intense.
A bunch of dupes were patched like kits dupes auction house dupes and coinflip dupes. So if you are tired of broken prisons where no one fixes exploits this place is different. It is clearly being watched and maintained.
If you want a Bedrock only OP Prison that actually gets attention from the devs and is made for people who like a real grind this server is worth trying.GG.MINEWIND.NET New Server IP