Ngabo moved to the youth academy of Lyngby in 2021. After working his way up the club's youth ranks, he was promoted to their senior squad in 2021. He made his professional debut in a 2–1 win over Nykøbing on 25 July 2021. In August of the same year, he signed his first professional contract with Lyngby, penning a three-year deal. In his debut season with Lyngby, he helped the club finish second in the Danish 1st Division and earn promotion into the Danish Superliga.