1) Internet commentary is generally pretty low quality, but perfume nerds seem categorically to all be the most interesting person you would ever invite to a party: https://basenotes.com/fragrances/no-5-by-chanel.10210628
every single comment on that website is amazing.
2) I hate perfume. I met an avant garde perfumist called Christopher Brosius (label: "I hate perfume") and waited 20 years to buy his samples. They are AMAZING. So approachable. Everyone who has let me dab with his fragrances has been blown away. "In the library" smells like old books. "Wild hunt" has rotten leaves as an ingredient. "Walking on air" smells like fresh cut grass. I hate perfume but I am obsessed with his smells: https://www.cbihateperfume.com/
The first perfume on https://www.cbihateperfume.com/ is "At the Beach 1966".
This was a plot line for Seinfeld (Kramer invents it then Calvin Klein steals his idea).