Seeding bare spots isn't too complicated, but there are a few key steps you need to take to ensure success.
Garden/soil cultivator (could be found cheaper locally): https://amzn.to/324bysr
Sanctuary: https://thelawnwhisperer.net/products/sanctuary-11-21-21
My4Sons Sprayer: https://thelawnwhisperer.net/products/my4sons
Grass seed: https://thelawnwhisperer.net/collections/all/grass-seed
Learn how to take care of your lawn step by step like I do: https://thelawnwhisperer.net/products/e-book-the-lawn-whisperers-guide-to-cool-season-lawns
Did you miss our previous article...
https://lawnmaintenancetips.com/fixing-lawn-problems/how-to-fix-an-ugly-lawn-with-results-step-by-step-for-beginners-easy