Check 24Hour Fitness. The selection of cities is somewhat limited (but growing). If they are in places you travel to regularly, that could be worthwhile.
There are several things you can do with short pools related to breathing. One is to experiment with your exhalation control -- e.g., a switch drill, wall to wall, exhaling gradually so that you empty the last air on the last stroke. Its debatable whether "no-breather" type sets do anything for you physiologically, but psychologically, they can accustom you -- mentally at least -- to functioning with a little less air than you'd like to have, which can help in the inevitable instances where you mistime a breath, get some water in the pipes, etc. Once you have convinced yourself that those circumstances are not cause for panic, learn how to spit water out under the surface, and so forth, they stop being cause for panic and stroke breakdown. Another is timing -- even a few strokes is enough to focus exclusively on the timing that generates the best bow wave and allows the lowest head position for you. Lastly, they are often good environments to practice flip turns, and the airway control necessary to accustom your body to doing them -- approach, nasal exhalation, and coming out of the turn strong and confident.