Famous Frocks little black dress is a book full of them: https://www.amazon.com.au/Famous-Frocks-Patterns-Garments-Inspired/dp/1452123659
Or in wovens, something like V1208 (bias cut), V1593 (seen on sewing bee this year), V8808 / V9373. Knits, kwik sew 4026, McCall’s 7653, New look 6206, or V1250?
Depends exactly what you see when you say little black dress of course! :-)