I don’t personally think moving into the $500-600 range is going to increase your enjoyment much. Your next step is going to take 3 to 4x that to make any significant sound quality impact, minimum. Much of that in improvement will be in the table and arm choice, not so much the cart or phono stage choices. IMO.
If that is what your budget is, you might consider a cart upgrade until you can invest much more.
If that is what your budget is, you might consider a cart upgrade until you can invest much more.