Initially, I would suggest a multi-entry tourist visa, this allows you up to 9 months (60+30 at a time), you say coming and going, each entry would get you 60 days, no need to keep applying for any visas initially.
" folks new member to the group , my wife and I are looking to stay in Thailand for at least a year in 2023 once she hits 50 ,I’m 53 " and then you complain about the financials. So, I repeat, be happy they are still letting you in.