Do you have a spare computer that you can load up with RAM so that you can try out some available models? It may not be fast, but it will give you an idea of how capable the models are.
I have been running some local models on LMStudio using an AMD 5950XT with 128 GB Ram (until recently with no GPU offloading). My two cents is that I keep reaching for my free ChatCPT account because I find the local models fairly unreliable.
Some just seem to get into a thinking loop where they go over the same ground again and again. Others can just output pure garbage.
Would anyone here suggest any specific models.
Especially for Swift/SwiftUI. PHP. And MySQL Stored Procedures.