We have a linen closet that for a time in my childhood was emptied out and made to serve as the “Nintendo room”, containing an NES hooked up to an old Commodore 64 monitor. I still associate that fabric/crafty smell with 8-bit gaming.
I also love the smell of sun soaked dog fur.
The scent of nothing. I really dislike artificial scents, like perfume, air “purifiers”, and sprays. Natural scents are fine, but I prefer they stay outside the house.