Goku Moroha combos are rather simple, unless you want to go all fancy pants on your opponent, just do anything into launcher>[2S>butt(421HS)>IAD j.S>j.HS>orbs(j.41236S)>land>c.S]xN, or you can omit the part after the IAD completely and just do butt loops all day.
Launchers include anything into 2H, anything into 2D>c.S (if you're close enough, if not you can do 2D>5HS), AA 5P, AA 6P, AA 2S itself, etc.