Check out the site fragrantica.com
It contains an insanely huge database of fragrances with reviews and such. It also shows what fragrances people think smell similar to others, and you can also search for perfumes by notes in the perfume (so depending on what scent in the perfume you really like).
On that website many people thought Viva la Juicy smelled like Flora by Gucci Gorgeous Gardenia.
This is my favorite site when I'm looking for perfumes, it is very helpful.
I hope this helps!