I have had good luck with long term use of the Hydrofarm brand of air pumps. They have a size for most home users. I have used their four port and eight port with no problems Active Aqua Air Pump, 4 Outlets, 6W, 15 L/min. If you want some real power but a little more white noise than I have also had good luck with their Active Aqua Commercial Air Pump, 6 Outlets, 20W, 45 L/min. Hydrofarm makes sizes from one port to many and I have been lucky with their brand so far. Depends on how much air you wantto push. I will be using the 45 lpm pump on two airdomes cause I really don't think you can overoxygenate your root zone once established. YMMV
Edit: Another note while I use the bigger air pump for my grows the 8 & 4 port pumps are usually oxygenating water, nutes, or teas and gave been running pretty much non-stop for a couple years.