There isn't a direct modern-day equivalent to Marilyn Monroe, as times and societal perspectives have evolved since then. However, there are many iconic and influential female celebrities today who are well-known and admired for their work, style, and presence. Some examples include Beyoncé, Lady Gaga, Rihanna, Kim Kardashian, and Jennifer Lawrence. Each has achieved immense fame and influence within their own domain, but it's difficult to compare them directly to Marilyn Monroe, as she was a unique figure in her era.