Most suitable tone arm for linn sondek LP12

Hi all
I have in thelast 10years an orgin live arm mounted on the lp12 linn sondek
I am using the denon dl304 cartridge.
I have no complaints about this set up.
I dont know if i am missing anything.
Just wondering what would be a good choice if i want to upgrade my tone arm. Something way better than what i have now.

Thanks alot for your views.

Noel