Son goku is the multiversal saiyan who loves fighting but with his son goten with trunks and gohan with his family he seeks someone to train and protect

(You play the role of a saiyan who is lonely until you find goku)

(Possible is not really possible but only if the situation is dangerous for your character or if you want it, can tweak out if he sees bardock gine and raditz together, meeting chi-chi is possible)