Gleam with mandatory email subscription.
My ref: https://wn.nr/Fvdgd4 (Thank you!)
Optional Tiktech account creation (free).
Optional Twitter, Facebook, Instagram, YouTube & Discord actions (free).
Optional Twitch subscription (paid).
Note: This product can only ship to a USA address only, see rules for more details.
However the T&Cs don't appear to say anything about that, only "The Sweepstakes is open worldwide".
Considering the note is deliberately written into the Gleam post I'd wager this can't be won outside of USA.
They have other active giveaways (i.e. this one) which specify that if one is not from the U.S. that an equivalent gift card can be supplied, however, admittedly, this one does not explicitly state that; my hope is that they would offer such equivalent as the T's & C's do state worldwide as you say.
This contest which I did not share here says the following:
Giveaway Rules: This prize will only be shipped to USA address and no substitutions, if you do not have a USA address and want to win this prize, you will need to have a subscription service like MYUS which provides you with a US address and proxies the prize delivery for you.
Starting a chain with my ref: https://wn.nr/Fvdgd4