Flying for a legacy doesn't mean you ever have to fly wide-bodies. In fact, I would argue it makes more sense to go to a legacy since many other pilots DO want to fly WBs and that means your seniority will move faster on the NB side, not to mention the better contracts, stability, and pay. You would also have the option of going back to a WB if you ever change your mind.
If you don't want to move, United has a 737 base in Orlando. Either way, apply everywhere and make a decision one you actually have CJOs.