I have a few ideas for this story

First.  the people know that izuku has this kind of Quirk he should permanently stay at ua and make it is home and kingdom and have complete control over everyone. to do whatever he wants

Second. He should change the school uniforms to more skimpy and erotic uniforms. Not for his class but for all of ua students 

Third. Since his Quirk allows it to copy a Quirk you should create a Quirk that allows the user to brand a person to know who they belong to and to know the location and to see where they're at and that there are forever submissive and loyal. 

Fourth.  Ibara is a religious girl she should make a sex religion or cult for izuku to worship him so he can brand them with this new quirk.

Fifth. Since he owns ua and has momo yaoyorozu he should have a strip club only for himself and and to use momo or ua as his personal bank so he can throw money at the girls who are dancing and stripping for him especially ochako and her mom or for any poor characters that you can put in

Six. Izuku it's going to be more confident and dominant he should parade some or all of his girls in his class or whoever in the street wearing the most inappropriate, sexy or slutty clothes or have them dress and walk like pets or parade him around like a king or a god.

Seven. In his classroom or in any classroom this should be a thrown couch for izuku to sit in or have sex. And any and all gen ed class are maid and have to wearing slutty sexy maid outfit for izuku and must do whatever he says. The business course students must wear sexy business outfit promote and provide izuku anything that he wants.

Eight. Any prohero who want to have izuku have to permanently move to UA as ther new home when they're not working and be loyally submissive to him and give him all of their belong and sidekicks to do what he wants.

Nine. If you can find a way where izuku gets the body modification like shigaraki does. so he can have sex with all his girls

Ten. Have ua to put a new school for young girls so they can follow the new religion or cult so they can please the new harem king in anyway. 

Eleven. Finally when principle nezumi announces all these rules. See well live broadcast on TV the new rules and status and to prove the point she will be fuck by izuku on ua TV to know that she is serious and surrounded by the naked teachers too support it.

Those are some of the ideas I came up with hope this helps you to come up with other stuff for this story

This is a amazing story please don't stop writing can't wait for the other future chapters.

ever gonna continue this, I want to see more

this whole thing, yeah I'm liking where this is going. For ideas

yeah the human toilet thing sounds fun, and makes sense for a fungus girl to do that actually. Like for real good choice for her to do that and if he asks "do you hate it?" she will go, "no it actually helps my quirk to have that, makes my mushrooms grow better"

as for kinks...hmm maybe female version of Fumikage would help him dom some other lady, maybe Baku-cunt, I could see her shadow being as perverted as mineta and can shape shift to "fun" items.

Speaking of, surprised Female Mineta hasn't tried to rape Deku...like for real...though maybe she is as chaste as a nun in this universe LOL

Keep up the good work, sure the plot is an excuse for different porns but hey sometimes thats all you need. Though I recommend to not alinate readers, put kink warning on the top of the page, I don't mind the human toilet kink but pretty sure plenty of others do.

As I said in your Naruto story, amazing fics all around. If you'd also want ideas for this one... here we go:

-Seduction class with Midnight. Of course, it's just an excuse to get Izuku to enjoy himself and have fun with the girls, with their objective being flirting with him and getting the boy to become the true stud he deserves to be

-Some nice hate fucking. Izuku probably needs to vent out his frustrations with his version of Bakugo. No better way of making the proud heroine find her place as his little cum dumpster, for example.

-I'd love to see moments of clear favoritism from Izuku's professors, that are very much accepted by the class. Like Izuku's heroism test being far easier or him not having homework. After all, he proved that he is already a huge hero, no reason to worry about stuff like school work! And besides, if he is bored by not doing homework, he has more time to fuck his classmates.

-Of course, a scene with him trying a new 'hero outfit' that lacks pants, made by Mei would also be great!