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.
Water. Whether it’s ocean water, creek water, water on trees in the woods, spring rain, summer rain, fall rain (they all have different scents), or the smell of rain from miles away mixed with ozone from summer storms, even lightly chlorinated pool water can smell good in the right circumstances.
That and my cats fur. He always either smells like clean laundry, even if he’s been nowhere near any laundry, or if it’s a windy day and he’s been sitting at the window he smells like fresh air.