Besides the tools mentioned, what are some other AI tools that can be used to accelerate coding for established codebases? I have some money to try out new too

Besides the tools mentioned, what are some other AI tools that can be used to accelerate coding for established codebases? I have some money to try out new tools, but am wondering if there are that are less "black boxy" and would work with a company's private instance of Azure ChatGPT?