Sliding bevels can be had on as easy as wink and I have been testing them out for a while. I pretty much know which ones work well but I wanted some up to date info on ones available.
Prepping Wood Part I Intro - Paul Sellers' Blog
Category: Paul Sellers' Blog - Page 16 - Paul Sellers' Blog
Sliding Bevel, Buying Guide
Sliding Bevel, Buying Guide
Sliding Bevel, Setting Up Guide
Accidental Woodworker: sliding T-bevel
Since March 2021 I've Made . . . - Paul Sellers' Blog
Using a Sliding Bevel, Using Guide
Accidental Woodworker: sliding T-bevel
Designs for Learning Woodwork - Paul Sellers' Blog
Since March 2021 I've Made . . . - Paul Sellers' Blog
Remarkable Things - Paul Sellers' Blog