As a quick one, to note the passing of the under-valued treasure that was Gary Sperazza! (I'm only basing this on his Bomp! Magazine input) I will just throw a list together that has been a life-long search TOTALLY inspired by his delineation of 1970s Hard Rock (in The Power Pop Periphery)...
When record shopping (and now, youtube searching etc) I always have that aesthetic in mind: Hard Rock With Pop Influences... Of the stuff he noted (April Wine, Artful Dodger, Piper, Starz, Bad Boy, Earthquake, Rabbit) a good chunk would, in time, be accepted as Power Pop by the powers that be and other curators.
Gary Sperrazza!: "Most of them (bands) are all extensions of the post-Glitter days with strong Deep Purple overtones. However, almost every single one of these bands manage to come up with at least one memorable record. "
The ones who leaned closer to Deep Purple were bands like Boston, Legs Diamond, Kiss, Aerosmith etc.
PIPER
ANGEL
BAD BOY
STARZ
ARTFUL DODGER
APRIL WINE
EDGAR WINTER GROUP
RABBITT
ACE FREHLEY
FOTOMAKER
PIPER
PIPER