Youtube based SAAS products

Hi everyone!

I am interested in the various way to build a consumer audience for a SAAS product directly on YouTube. I am interested in reviewing the different formats/concepts used in practice.

My culture about #buildinginpublic is mainly:

• the dedicated series of article: https://publiclab.co/building-in-public,
• the book Show your Work,
• the section build an audience in the article from Nathan Barry "The Ladder of Wealth": https://nathanbarry.com/wealth-creation/

However I am not fully satisfied, and would like this post to be a compilation of SAAS products build after the audience was acquired on YouTube. I currently see three channels all focusing on selling tech interview or course:

• Joma Tech - https://www.jomaclass.com/store
• TechLead - https://www.techseries.dev/
• Clément Mihailescu - https://www.algoexpert.io/frontend/product

Do you know any other channel / business that have created their audience mainly on Youtube while building their product ?

Thank you