Yes, the reason Alabama, UT Dallas, Tulsa, Maine etc get mentioned so often is that these are schools that give a full ride, or near full-ride for National Merit and are very transparent about it.
Other schools give only a small amount (Bowdoin, Carleton, UChicago etc.) but at least spell it out.
With other schools (such as WY, TN, Indiana), it’s really hard to tell from their websites. Probably best to call directly to any schools that interest you.