I think P1 of Boldville would be a good "Breaking Into the Grade" climb for 5.8. I actually found it pretty strenuous, but the gear is super plentiful, and the moves are great! You get the burly-ish pull over the initial hang, then the big arching crack, where you can milk the jams, using fairly delicate smears, then the tricky, balancy move right onto the face, and the finishing move to the fixed anchor. All falls would be clean. Really nice climbing that I'd recommend to anyone.
we're all living proof that nothing lasts