A few months ago, I talked about my experience with Google Fi. I liked Fi because it let me travel internationally without worrying about service when I landed. These days, catching a flight around the world isn't such a good idea, so I decided to go with a cheaper carrier: Mint Mobile.
I decided to try it out for 3 months to see if it was worth while. They use the T-Mobile MVNO network, so if 5G is available in your area you'll get that service. I signed up using TopCashBack and got $20 off a 3 month plan and 3GB/mo. Once my plan was up for renewal, I decided to just go in for 12 months at 15/mo and 3GB/mo for a year upfront ($180/yr).
Porting in from Fi was easy, and they have an app to help you port in your number. Once that is done, you are ready to make phone calls. That's it! When it comes to travel time, I can buy international credits from them, however I'm more likely to use my Airalo esim since it is a way better deal.
If you decide to take the plunge, please use one of my referral links: