Hi,
Just a sharing. Moderator pls delete if deem inappropriate.
Here is a lowcost ebook on Blender 2.8 modelling written by me.
https://www.amazon.com/dp/B07QFHH6XW
I spend a fair bit of time working on it . As for the lowprice, i hope to recoup some profit for my effort and yet give something that has mass appeal and value.
Note: This material covers only 2.8 interface/operation and modelling and nothing else.