gorky PICK ONE AND ONLY ONE!
Nanites would just get destroyed after you cultivate, afterall nanites are without a doubt considered an impurity in the blood. Your cultivation would kill them, unless you never cultivate and die 60 years after transmigrating.
Hulks bloodline would suck ass.... You'd get killed so easily if it ever triggered.
Speed force as your internal energy.... Fuck off, you have to cultivate speed force, you don't just get it. Maybe a sword belonging to the lord of speed that contains insights into speed force would be fine, but not straight up getting it for free.
Gokus base body is fairly trash, afterall the base body is the moment you are born, so you only have potential, not power..... Also his body might be a weapon, but his memory isn't.....
A pet isn't a weapon. A living being can't be considered a tool, an item spirit does not equal life so you can choose a sentient golem dog, but that'd be lame.