Here’s some resources:
Reddit FIRE: https://www.reddit.com/r/financialindependence/
Practical FIRE blog: https://www.mrmoneymustache.com/blog/
Poor Richard’s Retirement: https://www.amazon.com/gp/aw/d/B0725GG5LK/ref=tmm_kin_title_...
What you need to save: https://fourpillarfreedom.com/the-financial-independence-gri...