I'm having a hard time deleting Mewtwo. How are you managing your collection?

After a week of heavy raiding I have about 18 Mewtwo. I also have others eight from ex raids. The best has 98 iv the worst 73 iv. I am running out of bag space and probably need to delete some of them. But it doesn't seem right in some way deleting what many folks feel is the top pokemon in the game. With several more weeks of mewtwo raids how are you managing your Mewtwo?