Lightning
My selfish side does not agree with Mc's decision, but only because I would like Mc to be the strongest and recognized as a better version of Mr Satan. However it is undeniable that having more KI users is only an advantage for humanity and indirectly also an advantage for Mc which is recognized as the best. I sincerely hope that one day he will take Goku's spacecraft and bring it to Bulma's father so that he can build a gravity chamber. with a gravity chamber, he will be able to train without too many problems and reach very high levels of power.
DarthVegito:He needs martial arts and king chappa was extremly skilled its just that he didnt have ki so it held him back. Every fanfic the mc either somehow knows or teaches himself martial arts or they go and learn from Roshi. The mc learning a completely different style already makes this interesting to me