I would get rid of my US number completely, however, i have so many different accounts with 2FA. I hear google phone works, but if youre not in the US at least once a year they can deactivate your account.
My plan is to keep my number for 2FA purposes, and get a local sim for everything else. Right now we are paying for international package and its killing us.
On T-Mobile you can reduce your service to like text and calls only and it was pretty cheap. Maybe 25$?