Chart Patterns acc. to Marc Edmund Jones - Astrodienst
Astro DIY #11: Understanding patterns in your birth chart
I thought this was interesting. Never heard of natal chart shapes. Each shape has a meaning. There's a page on astro that explains them well. : r/AskAstrologers
John Townley's AstroCocktail
Chart Pattern tutorial
Chart Pattern - The Bowl | Numerology life path, Reading charts, Numerology