I use seeking alpha but it takes a bit of time up front to determine which analysts are full of it and which ones really know their stuff (kind of like TexAgs). After about a year of reading analysis on seeking alpha I got a sense of which analysts were really experts in their fields and had an investment ethos similar to mine (value investing slant focusing on long term compounders/GARP with the occasional deep value idea). I read those analysts write ups and they often generate new ideas for further research on my part.
I also review a lot of 13f forms and fund letters from investment managers/investment firms that I really respect (e.g. Semper Augustus, Investment Management Associates, Berkshire-Hathaway, Fundsmith, Giverny Capital, Wedgewood Partners, Michael Burry, Tweedy-Browne, Broyhill Asset Management, Farnam Street Investments and so on). Lots of great ideas that pop up in those letters and 13f forms that inspire additional research.
Lastly, I do a lot of Peter Lynch style "investing in what I know" where I see companies gaining share in my professional sphere and personal life and use that as a jumping off point for additional research in those companies.
A noble spirit embiggens the smallest man.