I'm not sure if you're looking for a hotel beach or something not fancy. If you prefer quiet places, I suggest you to go to Khiran. There is a resort, but also a huge area with villas under construction (few kilometers before the resort).
It's very quiet, the sea is much cleaner than in the city, and you can swim in whatever you want because there are no other people. You'll see couple of them - MAYBE. But, they will be like 200-300 meters from you.