Currently, for around usd $150-200 in ebay, consider a used Samsung Galaxy S9 Plus. Bought mine used in early 2019, through ebay, still going strong. I use about 80 GB/mo of data though this phone, no problem. Great camera, battery. It was listed as a Verizon phone, but Verizon phones are unlocked. In a trip to British Columbia, I brought a Verizon-listed phone that had a ATT sim, took out the ATT sim, inserted a SpeakOut sim - worked great.
wow, FM radio (without Wifi / data)- it uses the plugged headphone as the FM antenna. I had a Motorola Moto E 2014 that did that, pretty neat. A friend currently uses a Motorola Moto G Power, has that FM radio feature. Moto isn't as snappy, screen isn't as bright, as my S9+, but it works for him.