You don't be need to kill Hitler as a baby. You can prevent all of that horror a simpler way. Just abduct him as a baby and travel back to today.
From there it comes down to personal preference:
You could raise him as your own. This would be the funniest option because you obviously could never tell anyone, so only you'd know. And knowing that information means that you're the only one who could raise him and make sure he doesn't go down the same path. No Twitter for sure.
Or you could give away little baby Hitler to some random adoption agency or firefighter drop-off.
You could also try a more careless, callous, and profitable strategy of selling him to creeps. But punishing baby Hitler only sounds good until you realize baby Hitler was/is/would be still theoretically innocent.
Then there's the 2023 approach where you prove and publicize your time traveling abduction and use the fame to be an Internet influencer.
Why are there only bad options for this?