I'm a guy who likes good rims. I have searched around the net, tire shop and halfcut shop to see what rims suits saga. Below are some of my own favourite rims and rims that I would recommend to gaga owners, I prefer simple design, not too much spoke or fancy fancy stuff. They might be less popular than the mainstream design like TE37, CE28, RPF1 or vossen but I find these designs timeless and you no need to always bump into another car using the same rim as yours.
Advan RC2...these rims would look really good on our gaga. With the spokes extends all the way to the lips it makes them looks bigger than it's actual size. The Gold colour looks really awesome also compare to the silver one

SSR Integral GT2 a nice 5 spoke..

Enkei RS+M

GramLight 57C. These are made by Volk Racing but too bad they are not as popular as the TE

AME Tracer. Made by Enkei, they looks they are designed based off RPF1 but the spokes are not parallel and tightens at the lips. Rare rims but not much love given.

5zigen FN01RC.

Sprint Hart CP-035. Advanti had made a copy of this which is very nice also

Enkei ES Tarmac. This 1 is also a nice rim.

this is a good guide from sifuu..