I don't know what is the cultivar sold at markets, but in terms of trend in typical nursery catalogs -- and this is just from the ones I've been getting over the last decade or so -- Fall Gold was the most common a while back, then I bought a cultivar that came out called Kiwi Gold. Recently the most common yellow/gold raspberry I see in catalogs in Anne Yellow.
Now my Kiwi Gold thrived for the first two years but have not been doing well. It is prone to grey mold. I don't know if I didn't plant them in the right area or have not been caring for them as well as I should (two summers ago my entire garden was neglected). I have a plan for new (larger) raspberry patch and am thinking of getting Anne Yellow and a Red cultivar.