The following are all recommendations for animes with many male leads but no female leads or with little female leads: 1."The Attacking Giant": Although there is a female protagonist in this work, her presence is very low. The main characters are all men. 2. Sword Art Online: This game also has many male characters, and each character has their own unique personality and storyline. 3 "Fate/stay night": Although there are female characters in this work, her presence is relatively low. The main characters are all men. 4.<<Index of Forbidden Magic Books>>: Although there are female characters in this work, her presence is also low. The main characters are all male. 5 "Gate of the Stone of Destiny": The main characters of this work are all male, but the plot is very fascinating and worth watching. 6 "The Rebellious Lelouch": Although there are female characters in this work, her presence is also low. The main characters are all male. "Evil Crown": The main characters of this work are all male, but the plot is very good and worth watching. I hope these recommendations meet your requirements!