I too like CDNN although they don’t have Llama mags right now. They often have Mec-Gar at great prices and those mags are equal to or better than original manufacturers mags.
As soon as the ban expired, I ordered maybe a dozen or more Browning Hi-Power mags. The best ones are Mec-Gar, Argentine Military and Asian Military. I bought a couple of South African ones because of the price but don’t care for them. They have functioned OK so far but are really hard to load due to an extremely stiff spring.