Objectively Vegeta, if you're using "job" in its actual meaning of "losing to make someone else look good." Vegeta is good for this exactly because he's fairly powerful usually #2 or #3, meaning unlike someone like Yamcha or Krillin, he's still a relevant measuring stick.>Zarbon>Recoome>Freeza>Freeza again>Freeza a third time (verbally)>Android 18>Perfect Cell>Cell Junior>Fat Buu>Hit>Black>Fused Zamasu>Jiren>Broly
He lost against Gohan, Krillin, and Yajirobe, as well as against Kid Buu, Beerus, and Cell a second time, but those instances weren't really jobbing. In the case of the former, he was presented as an unstoppable juggernaut who was just barely brought down. In the case of the latter, that the villains would smack him around was presented as a fact by the narrative going in, so he wasn't really a measuring stick there. Those fights were more about his character moments.