Need some suggestions...

[bazooka]

Here's a way old Songfacts Topic along similar lines.

[bazooka]

Others worth checking out:

The Byrds

The Yardbirds (Having A Rave Up, etc.)

Ten Years After

Canned Heat

The Youngbloods

The Moody Blues

early Quicksilver Messenger Service

early Leon Russell

early Elton John (Madman Across The Water, etc.)

[phil]

Jr. Check out some Allman Brothers - "Live At The Fillmore", Frank Zappa- "Hot Rats", "Over-nite Sensation" and Grand Funk and some Humble Pie