I preached through Matthew in 2018 and found that Behold the King: A Study in Matthew was the most helpful of all the commentaries I consulted. Mr. Toussaint is an outstanding author and deals thoroughly with the Kingdom. You can tell a lot about ones theology  (dispensational vs. covenant) from how they deal with the subject of the kingdom and the parables in the Gospels. This book provides great insight in helping one properly interpret the Gospel of Matthew.