A minor pentatonic - A,C,D,E,G will go nicely over A, D, and E or A5,D5 and E5.
My favourite jamming song in this Key is AC/DC - Powerage - track 8, up to my neck in U.

Try and play these notes where they appear on as much as the neck as you can, if you find a nice expression - work it to death
A mate once said to me ' it's all in the fingers ' and somehow it helped.