Who was sitting in the gateway of Sodom when the two angels arrived?

Answer: Lot

Lot was sitting in the gateway of Sodom when the two angels arrived that evening, and he rose to meet them.

“Now the two angels arrived at Sodom in the evening, and Lot was sitting in the gateway of the city. When Lot saw them, he got up to meet them, bowed facedown,”— Genesis 19:1 (BSB)