Pink Floyd - Piper at the Gates of Dawn

The Pretty Things - S.F. Sorrow

Love - Forever Changes

13th Floor Elevators - Easter Everywhere

Jefferson Airplane - Surrealistic Pillow

Jimi Hendix - Axis Bold as Love

Van Morrison - Astral Weeks

The Byrds - Fifth Dimension

The Grateful Dead - Anthem of the Sun

A lot of these lack the sophistication of production that Peppers, but they also don't have George Martin producing. They are all just drenched in psychedelia though and mostly all use a lot of the same tools and equipment to create that reverby dreamy like sound.