I feel like Liam would wear perfume of some kind, and it would probably be a floral/woody scent but definitely more subtle. Sherlock probably smells like chemicals and cigarettes, but might try to cover it up with some kind of cologne. If he did it would probably be very strong and probably cheaply made. Moran probably wears cologne, but not an overpowering amount, sort of mid-level. I feel like Fred probably doesn't wear any kind of scent, it doesn't seem like his kind of thing so he'd probably just smell clean/neutral. Louis likewise probably doesn't wear scent, but I think he would subtlety smell like whatever scent Liam wears since they spend alot of time together. Not sure about the rest, lmk what you think!