Such a pain in the *** giving the space i have what tool can i use to get this off? Would long pliers work no socket works (even the ones designed for rounded nuts)

They make “stripped nut” remover tools, sometimes a vice grip works, or a chisel and a hammer. That looks real rounded!

Grab a socket that is slightly smaller than the nut and hammer it onto the nut. Then use an impact gun to get it off.