I'm a huge fan of Mutant Year Zero: Road to Eden and Miasma Chronicles. They're both made by the same developer, The Bearded Ladies. Both feature excellent post apocalyptic stories, characters and turn based combat, but with real time free roaming and exploration in between. Biggest difference is in MYZ you have a crew largely composed of anthropomorphic animals, who are hilarious. In MC, your main character (Elvis) and robot brother Diggs are trying to find your mom.

https://www.mutantyearzero.com/

https://miasmachronicles.com/

If I has to pick one I'd say I liked MYZ a little better, but it's close. MYZ also is a lot older so you should be able to find it cheap.