"Breaking the Law" or "Living after Midnight" by Judas Priest for example.........
Pretty much anything by Motley Crue, Ratt and even the Punky sounding stuff like "Ramones" are easy to play.
The problem for me is that I get bored playing it, even though it may be good song that I enjoy.
The trick that worked and kept my interest in playing a song, were the changes from the Intro, verse, chorus, Bridge, etc... in the progression to stimulate the mind along with your playing.
An easy song that comes to mind is "High 'N' Dry" (early Def Leppard).
I enjoy playing it because the song has changes and just stomps.......
Both rhythm and lead are fun to play. Another song they have is "Wasted" off the "On through the night" LP. It's good for easy mechanics, going from a nice riff into a chord structure and finishing with a little lick.
But it does become repetitive (It shows what Mutt Lange brought to the band by producing "High 'N' Dry" and breaking that repetitive cycle).
"Breaking the Law" has a fun easy Intro riff, then........................Boring IMO (This song doesn't a solo in it, so it may be what you're looking for).
There's just no way that I could play "Back in Black" all the way through and still be awake....(Bet Angus couldn't either without those added solos and tons of licks).
My advice is to choose songs that keep your enthusiasm and it will show through how you're playing them .........................