We just launched Depth AI - a tool that helps you onboard to large and messy codebases. Unlike most dev tools that help in codegen and building smaller apps, this one mainly aims at understanding large repos better - so we have focussed a lot of code search quality.

We also launched the first version on product hunt https://www.producthunt.com/posts/depth-ai. Do check us out.

Would love to hear feedback here and discuss more how our approach to code search is different.