Hello, im searching for a keyword research guide

Looking for a updated guide that still works in 2020

Blackhatworld

• How To Do KW Research w/ Free Tools
• The Beginner's Guide to KW Research
• Another one...

Other bloggers

• 8 Steps to Find The Best SEO Keywords
• How To Do KW Research for SEO
• The Beginner's Guide to SEO

Oh... the best guide here

• You can find ALMOST everything on this website for SEO.

https://www.blackhatworld.com/seo/is-there-anyone-who-knows-a-method-to-find-keywords.1239359/#post-13303821
https://www.blackhatworld.com/seo/is-there-anyone-who-knows-a-method-to-find-keywords.1239359/#post-13303821
https://www.blackhatworld.com/seo/guide-newbie-friendly-keyword-difficulty-checking.1240721/
https://www.blackhatworld.com/seo/the-keyword-research-master-guide.1229500/

Search on BHW forum you can get many guides here

This one https://ahrefs.com/blog/keyword-research/