Not sure which country you're in but in the U.S. I haven't seen many gift cards that are contactless tap-to-pay so you would want to double-check. Without tap-to-pay those type of cards would need to be added into a phone app (Google Wallet / Apple Pay) to be able to tap-to-pay using it.
It's possible outside the U.S. it's more common for gift cards to be able to tap-to-pay.
Or if you're talking about store gift cards then the same applies, most of those aren't tap-to-pay either so you'd want to double-check.
Not overly active but there are a few communities you could join if you like
!OpenSignups@lemmy.dbzer0.com
!Opensignups@lemmy.ml
!Opensignups@noworriesto.day
https://opentrackers.org/ is also a good site to keep an eye on (though it seems to be less active at the moment).