Need Clam Recommendations

[Albertan22]

Hi all, I'm thinking that it may be time to add a clam to my tank, but I'm not sure what species I should be looking at. My tank is 120g (24" deep) mixed SPS/LPS reef with an 8 bulb T5 Tek lighting fixture. I'm hoping that my lighting won't be the limiting factor, as it's bright enough that I have to keep my brain coral (rests on the sandbed) in the shadows to get it to open... Any suggestions?