First, there's the classic Tightwad Gazette.
Then, there's Ragnar Benson's Eating Cheap.
And, Essentialism: The Disciplined Pursuit of Less.
Plus the old 200+ item list I had in the Financial Crisis of '08 is now here: Save $1000 Per Month.
And a fresh, new, pro-humanity guide to retirement: Poor Richard's Retirement.
And the mega-classic: Cashing In on the American Dream.
If you want to quickly explore lower cost alternatives to college, see: Free and Low Cost Education.
In Lieu of an MBA can save you $30,000 ++ on MBA tuition. Grab a B-School synopsis. Unless you want to be a CPA. Then you need an MBA.
Don't just read hundreds of ways to save. Explore mindset and motivations to be a cash and cash flowing asset hoarder.
Color outside the lines if your heart so desires.
There's an older widely acclaimed minimalism book I read long ago. I'll add that to this list when I remember it.
And remember, status is slavery!