Promag and Mec-Gar make decent magazines, I wouldn’t suggest them as primary magazines, but factory new magazines can be pricey.  I would suggest regardless of which number of magazines you are normally carrying, keep 3 or 4 range mags for each handgun you own.

Whenever you get to the point where you are putting hundreds of round down range to train for work of for your concealed carry firearm, you may want to consider getting some secondary gun magazines for training and blasting and save your primary magazines for carrying.   I would strongly suggest that you put enough rounds through your primary mags but there’s no need to burn those out too fast.