Givenchy She is one of my favourites, but a bit pricey for me now that I'm retired and no State Pension until next year. However, I go to a website (I think it was recommended on one of the GN threads a year or so ago) and you can put your favourite perfume in the Search and it will show you their versions which are similar. It's called "Perfume Parlour" (I'm not connected to the company in any way!) I've bought three of their fragrances and they have all been more or less like the originals, particularly the one that mimics Mon Guerlain.
For "proper" perfumes, a lovely floral is Moringa by Body Shop although I know a lot of people won't buy Body Shop stuff now.