Advice on what new mobile phone to get?

A few threads I’ve posted on that might be pertinent -

The first has some of the then-current pay as you go T-mobile plans, as well as some basic analysis of the non-primary carriers, the last is another user in your situation, and my last post has a link to a number of quality ‘dumb’ phones.

One word of caution, which will ALMOST certainly not be needed - if you get an unlocked phone you will probably be absolutely fine for most of your use. But, you will need to take a little more time researching to make sure that the bands it supports are the bands in the areas you will be using it. Almost never an issue for a basic call or text, but if it touches on data, it can get a lot more squirrely - like an MMS.