These days mainly American rock bands from the late 1960s and 1970s with the exceptions being some British rock bands and there albums that were released between 1969-70 through to the early 1980s such as Led Zeppelin, Deep Purple, Black Sabbath, Humble Pie, Robin Trower, Rory Gallagher, The Who, Ten Years After and of course 'the stones' because all of the aforementioned bands and artists did VERY WELL over in the states except maybe Rory Gallagher who picked up a modest following.
American rock bands and artists such as Mountain, Steppenwolf, Johnny Winter, Montrose, ZZ Top, Love (the 1968-7O era in particular) Rick Derringer, Boston, Ted Nugent, CSN&Y, Santana & 'the Airplane' (the Jefferson Airplane of course) and last but not least
The Doors...
JIMI HENDRIX of course.