What tools do you use for finding solid investments? I really want to get some good financial data, mostly from 10-K and 10-Q.

I read through a lot of 10-Ks and 10-Qs mostly to find undervalued companies. I have been feeding them into LLMs, but it seems to exaggerate undervalued or overvalued companies. I also have to check its work, which really defeats the purpose. I have used Tikr and ROIC.ai, but their data doesn’t seem very accurate when I compare it to the 10-Q or 10-K. Bloomberg is obviously out of my price range, so that is not an option. Also, CapIQ seems intriguing, but also out of my range.