[agota]

You should create a landing page so that people who are interested in the book could subscribe and get updates.

[Bootwizard]

I was thinking of making it a blog because that's kind of how I've been writing it for myself.

And then organizing and compiling it into a book.

[agota]

That's also a good idea which would allow you to get feedback.

I recommend you to read Taylor Pearson's article on how he approached writing and marketing his book:

https://taylorpearson.me/jesusmarketing/

A shorter version written by me can be found here:

https://www.writersincharge.com/taylor-pearson-sold-5000-cop...