dnd 5e – mass seduction! How could I do this job!

We play 5e. My 3rd level Max Charisma Minotaur bard asked me how he would make a harem out of NPCs. He asked me if he would just throw charisma for everyone, and I had to explain to him that charisma throws could influence conversation, but you are not God's powers. They do not just let someone fall in love with you. I was wondering if there were any rule-based powers or items that would make a large crowd fall in love or at least have great admiration for him.

Speaking. I'm not sure what he's up to. So what should I see, how it works. Let's call it a clue.