I am rarely a big fan of croissant mainly because it is always too buttery and fatty, but I found the ones from Carton is light weight , crispy ( fluffy ) and most importantly not greasy at all. Highly recommend this place for pastry especially croissant. 

Boulengerie Carton at 6 Rue de Buci, 75006 Paris

Didn’t take a nice photo of it but here it is with a wrapping paper , hehe, so now have to guess its look !