Zebedee.
It works perfectly for me to buy gift cards from Bitrefill: https://www.bitrefill.com/invite/q3vi9c4y
It also has these advantages:
  • has a variety of games that reward newcomers with sats fairly easily
  • has tie-ups with Slice, thus entrenching itself with an ecosystem
  • provides an email address that makes it convenient for people to use it as a burner account
Thank you for responding! I'll take a look at Zebedee