The sunshine is a common name for one of the strains/collection points of aulonocara maleri. Check the profiles for the different variations. I have a sunshine myself that isn't as yellow but mine isn't mature yet. Yours might be a yellow regal.
Thank you all for your input. I'll try to get more of a close up on him. I still have a lot to learn about the different species and the islands and things. While looking at him, he does tend to favor the Maleri more than the baenschi. I'm looking at the profiles as well. Thanks again
As promised, here are some close ups. Thanks Rizup...I do believe I indeed have a maleri. Nice looking baenschi by the way! I can see the difference in the shapes of the heads. My fish is pointed and yours is more rounded.