For folks going to Bangkok, Mae Varee on Soi Thonglor in Sukhumvit not only sells the best mango with sticky rice or khao niew mamuang (Thai: ข้าวเหนียวมะม่วง) in the capital, it also offers a wide range of mangoes of various sizes, and various stages of ripeness.
Steamed glutinous rice with mango, topped with crisp-fried yellow mung beans (or moong dhal) for an additional textural contrast to the soft-sticky rice.
@Saregama Have you ever tried a variant using durian? My Bangkokian maternal grandparents loved it more than the mango version itself. It’s called khao niew thoorien (Thai: ข้าวเหนียวทุเรียน).
Strangely, I’ve had sticky rice with durians from the time I was a toddler, but only first tasted the more common & better-known mango version in my young adulthood. Maybe it’s just my family.