Everyone has bands they enjoyed that most of the folks they know nowadays never heard of. A few come quickly to mind for me. One is October Project. I feel that Mary Fahl has the best female vocal voice I have ever heard. I recently saw Mary at Cafe Lena a year or two ago as a solo artist doing some of her old stuff with just a classic guitar. Amazing, to this day. Another sleeper band for me is Spin Doctors. They spent most of their life as a small Greenwich City bar band; and then broke into the mainstream for a short time with one album that charted. The went right back into obscurity after that. I rate them every bit as good at Hootie and the Blowfish, Blues Traveler, or Third Eye Blind.
I always loved Concrete Blond. Loved "Joey" and "Walkin' in London". In fact that whole CD of Walking in London should be used as a soundtrack for a vampire film.
If you get a chance go to youtube and type in Baby Animals. The front woman a lady by the name of Suzi De March has one of the best hard rock femal vocals I have heard. Charted in 1989 in Australia with their debut album which ahd three top three hits including a chart topper and then disappeared, only to reform some time later. THey still tour and the female vocalist still has the chops.
Fishbone Frank Marino & Mahogany Rush (with greatest drummer to ever walk the Earth, T.Biery) Screaming trees
Concrete Blond are not unknown ... Nox Arcana are pretty unknown although they are very productive , of course they are making atmospheric ambient music that has a very limited fanbase .
About Fishbone, this is the song that made them "almost famous" and is a good example of their music. (Remember, this was made decades before 9-11-2001.) Party at Ground Zero