If you're new or coming back to graffiti, seeing all the different caps can be overwhelming. In the '90s, we mainly used two: Testors (from spray paint cans) and Fat Caps (from glass cleaner, aka NY Fats).
Two caps are usually enough. Try starting with the NY Fat and Universal Thin. You can swap the NY for a Pink Dot if you want higher output. If these don't suit you, experiment with different fat and thin caps.
#graffiti #graffiticaps