Don't laugh, but..............
Donna Summer.
IF you can find it, listen to the LONG version of MacArther Park. I know it's DISCO, but she really shows her vocal range and sheer vocal power on
that song. (and quite a few others.)
I saw her live recently (Universal Studios, Orlando) and she's got to be 60 yrs old by now and she still has a very, VERY powerful voice.
Then of course -
Pat Benatar.
Song - Heartbreaker... nuff said on that one.