List of the Phones are getting #Android11 at first-

Realme - #realmeX50Pro (Realme UI 2.0)

Oppo - Find X2 series & Reno 3 series (Color OS 11)

OnePlus - #oneplus8series (Oxygen OS 11)

Samsung - #GalaxyS20Ultra #GalaxyS20 & #galaxys20plus (One UI 3.0)

Xiaomi - #Mi10 (MIUI 12)..