I just found out this website which sells 5 ml bottles of perfume for 6 bucks !! this is a great offer, better have versatility than to buy only 1 bottle (you can buy 15x5 ml bottles for the price of 1 full bottle !!)

https://www.jardinsdecrivains.com/fr/59-doses-d-essais

plus their full bottles are cheap also (at 90€)

I tested these brands and they are amazing (specially Chapel Factory and Jardins d'Ecrivains)

i recommend this one :