What is the cheapest visa to get for a couple wanting to live in Thailand for the next five years sporadically, like 3 months to 9 months a year. Would it be cheaper to just stay 30 days and extend and do visa runs to neighboring countries or apply for a retirement visa or some kind of digital nomad visa or something else I haven’t considered? Cheaper the better is our priority. We don’t mind traveling and living in neighboring countries.