I'd like to learn how to pluck in different ways than the standard picking. Does anyone know any effective, preferably "fun" exercises to learn how to finger pick, preferably with four or all five fingers, like Julien Baker does here?

Also I'd like to learn to tap/finger tap/whatever its called- the technique iconic of indie emo bands and math rock/math punk bands. Does anyone know any effective exercises/regimines for this?
Custom-Built Strat
Epiphone Les Paul Custom Pro
Orange Rockerverb 50 Combo