What comes after mastering Open chords? [I Love Guitars]

So I think I'm getting there with my open chords, age 35, after having practiced on and off on my journey of learning guitar for 2 years though my strumming is a bit off and fingerpicking really difficult still. I can play some songs and change chords (I know many shapes corresponding with notes), I've also been looking at theory and in to reading notation, but I'm not sure which pentatonic scale to learn first. Major or minor? GABCD or E! Some advice on this would be appreciated thanks!