If you've found this post then you've reached the stage of "what keycaps do I get" of the mechanical keyboard hobby.
Should I buy ABS vs. PBT Keycaps?
ABS vs. PBT Keycaps: What Are the Differences?
ABS vs PBT Keycaps: Things you Should Know
ABS vs. PBT Keycaps: Keycap Materials You Should Know – Keychron
The Ultimate Guide to Keycaps: Material, Profile, and Beyond – Redragonshop
ABS vs PBT Keycaps: Making the Right Decision for Your Keyboard – Goblintechkeys
PBT Keycaps vs. ABS Keycaps - Das Keyboard Mechanical Keyboard Blog
ABS vs PBT keycaps: Which is better?
Different Keycap Profiles Explained – The Mysterious Gamer
Keycap Types Explained: Materials, Printing, Profiles, and More – Voltcave
ABS vs. PBT Keycaps: Keycap Materials You Should Know – Keychron
Differences Between ABS and PBT Keycaps