I ported the number I've had for 10+ years to google voice. I have many services set up with 2 factor auth using that number. What other options are there for

I ported the number I've had for 10+ years to google voice. I have many services set up with 2 factor auth using that number. What other options are there for an "online phone" like this? I only really need sms, and would like to use my own number. Do I have to port it to twilio and build my own? I'm happy to pay for a service like Google voice.