Had a nice little foundation leak during the last rain storm. Installed a drain line last fall to divert two downspouts and front walkway run off away from the house which helped a lot. Front walkway and a big retaining wall next to it ultimately need to be removed and reinstalled with proper grading and drainage. That's going to be a huge and expensive project so for now I'm just replacing all the worn out concrete sealant and hoping for the best.
https://waterproof.com/
I've installed this baseboard gutter system in a few basements. Doesn't solve the problem but it prevents flooding of the floor at a much cheaper price.