What steps should I take to bring my spouse to Thailand after getting a retirement visa?

I was previously on a retirement visa but I returned back to the UK to address personal issues and failed to renew, albeit my Thai bank account remains currently active.

I appreciate I would need to redo my retirement visa again but additionally, I am also due to get married in the UK very soon and wondered if anyone has experience on bringing their spouse as a dependant (as she is slightly below retirement age)

What would be the best logical steps? Would I first need to get my retirement visa and then for my spouse to later apply for a dependant visa and meet me in Thailand at a later time or can we both enter Thailand at the same time.

Any advice would be appreciated 🙏