The only place that actually had lavender syrup is a family owned cafe in the bougie section of town. they used this brand https://www.amazon.com/Torani-Lavender-Syrup-750-Bottle/dp/B00C2UCB2G/ref=sr_1_3?crid=12R283CMMXWUW&dchild=1&keywords=lavender+syrup&qid=1589901935&sprefix=lavender%2Caps%2C188&sr=8-3

theres also a cafe near china town in NYC that had a CBD lavender latte that was delicious. the cafe is cha cha matcha.

adding this syrup to black tea is also very enjoyable