you have lots of options. everyone works on rem700's and you have a long-action with a magnum bolt face. So if you rebarrel, you can chamber it in any cartridge you want as long as it has a magnum case head (.453). As mentioned before, if you chamber in something with a different size case head, then it would add expense to the project.
So, if you like short action cartridges (which means you can seat bullets way out and get maximum case capacity for powder), then think about the WSM and SAUM family. You can get them in 7mm and 30cal. If you like the long-action cartridges, think 300win mag, 7mm rem mag,
Alternatively, if your rifle is shooting well and it's just the recoil that's bothersome, the suggestion to change your stock is a good one. If you like a traditional style sporter...
https://www.stockysstocks.com/stock...-riflestocks-with-aluminum-bedding-block.html
if you prefer a vertical grip stock:
https://www.stockysstocks.com/stock...-riflestocks-with-aluminum-bedding-block.html
Neither will break the bank and neither will require bedding. Both are well designed may help reduce your recoil issue.