I'm buying a new PC. I would like to make let's plays,

Nope, none that anyone use. Just use a throwaway phone number online.

>>304369
vid.me

You could try dailymotion or nicovideo, though dailymotion is mostly spam, and nicovideo is mostly Japanese stuff.

>>304377
it texts you a code to input

>>304369
You could try vimeo. But it would be fucking stupid, because the userbase is so much smaller, that it is almost impossible to make a living out of your low quality shitty let's play there.
Go youtube or go home.

>>304558
If you're willing to buy a throw-away phone for this just get it activated temporarily. Something from TracPhone might work well.

you could stream on twitch instead?