DJs Clam Shack (strong recommend) - go here for lunch, best lobster roll i've ever had
Mangoes (strong recommend on the music) - there's a guy that plays yacht rock covers with an electric piano i think on THU-FRI-SAT. high energy, crowd really gets into it, it's a good place to drink and listen to music.
the Tiki House (recommend) - typical Tiki place, but a really good version of that if you like those type of places. it is right near the Sloppy Joes (which is also a pretty good bar and usually has good live music)