I'd second Gama at Sharjah for a quick turn; great operation; cost of fuel slightly more than DXB which is the best in the region (but can take some time to arrive at the aircraft). That being said we had a 50 minute turnaround in DXB in the past 2 weeks, uplifted pax and gas.
On a related, but off-topic note be careful of significantly increased parking fees in the area. DWC now at $450 a day from Day 5 on and Sharjah (Gama) just upped their rates from under $100 a day to a cap of $350 from Day 5 from 1 August. They gotta make their money somehow. And the greed pervades.