I need a juicy, dishy Hollywood or high society bio to read

I suggest Little Me by Patrick Dennis.

You'll Never Eat Lunch in this Town Again, Julia Phillips. It's from 2002 so obviously old stuff but it was a really fun read and probably still is. There was real dish in it at the time it was written.

Both of Shelley Winters autobiographies

Tennessee Williams autobiography is a hoot

Until The Twelfth of Never!

Betty Broderick and it is juicy!

Available on Kindle.

Flesh & Fantasy is a great book about Hollywood (not a bio). I liked No Bed of Roses by Joan Fontaine but I think she lied or at least skewed many stories.

Frank Langella, Dropped Names. VERY dishy, a page turner. Not a bio, but better. He just lists famous folk he's interacted with and gives the dirt. A fun read.

Mamie Van Doren, Playing the Field. Trashy and fun. She claims Rock Hudson boffed her, and names plenty more.

Esther Williams biography.