Welcome to the forum! With green, citrus, and lavender being favorites, it sounds like you might find a lot to like in some old-school masculines and unisex colognes.
Three fragrances come to mind immediately to recommend...
Guerlain Jicky ( in eau de toilette or eau de parfum - the pure parfum is more rich than fresh )
A very historic, classic fragrance based around citrus and lavender. Great in hot weather and dates back to 1889.
Caron Pour Un Homme
Very pleasant lavender, lemon and tonka - wears lightly for a fougere, and is great in hot weather. Dates back to 1936.
Chanel No 19
Leafy green aldehydic classic - the youngest of this bunch, but very highly regarded. Dates back to 1971 - if you can get this in an older vintage, you're in for a treat.