Looking for a perfume similar to Britney Spears Rocker Femme Fantasy? Below are 12 fragrances from our database of 24,000+ designer and niche scents that share its vanilla, sweet, lactonic profile with prominent whipped cream, coconut, blackberry notes. We score similarity by shared accords and notes — rare ingredients count more than common ones — so the matches you see are the ones that genuinely smell closest.