low VOC paints?

This is the place I use, and have really good results with.
I found if I order through Walmart online the shipping is even 50% than ordering from these guys directly.
I am using AE low VOC but you can see what they have that you can use.
Restoration Shop

What is the best primer to use with this ? I'm assuming single stage means you don't need to clear coat it.Correct ?