Brother i am from dammam. I think it will be better for you to try to get a house nearer to your work place as traffic is a big issue in riyadh. If you have school age kids you may chose a school near your office or home. it depends on balancing these issues. Masjids are every where alhamdulillah. As far as sheikhs are concerned, it depends on your choice. Are u looking for salafi or sufi? which language? etc.