Galzy, do you have a Cynar and Green Chartreuse cocktail that you'd recommend?
My go to would be a Blushing Monk:
2 oz Bourbon
1/2 oz Green Chartreuse
1/4 oz Cynar
3/4 oz Lemon Juice
1/2 oz Raspberry Syrup
Couple Mint Leaves, Gently Muddled
But guessing you don’t have the Raspberry Syrup? You could muddle a couple of raspberries and do 1/4 oz of Simple Syrup instead if you have the fresh fruit.
Otherwise I would do a riff on a Bijou, subbing Cynar in for the Sweet Vermouth. I would also cut the Chartreuse slightly from what most specs call for (equal parts). I would do:
1 1/2 oz Gin
3/4 oz Cynar
1/2 oz Green Chartreuse