3 verses have
besides
in Edition Clear Qur'an by Talal Itani / Az-Zumar (The Groups)

39:3Is not to God that sincere faith is due? As for those who take guardians besides Him, “We only worship them that they may bring us nearer to God.” God will judge between them regarding their differences. God does not guide the lying blasphemer.

39:15“But you can worship whatever you wish besides Him.” Say, “The losers are those who lose their souls and their people on the Day of Resurrection.” That is indeed the obvious loss.

39:36Is God not enough for His servant? And they frighten you with those besides Him. Whomever God sends astray, for him there is no guide.