@NTheShinobi oops. Sorry, I completely forgot about this. But here are those stories. They aren't exactly like what I write, but some share some similar characteristics-- like Aizawa is a parental figure or a new take on the plot.
Accidental Bonding by What_Is_Sleep_T_T on AO3 (Aizawa and Izuku)
Patches and Tails by Angelface6 on AO3 (not complete, crack taken seriously???)
Coloured Bricks, Pick-Up Sticks by Wyrvel on FF.net (not complete-- INTERESTING quirk idea, and Izuku is weird too)
Please Leave It Alone by NerdofSpades on FF.net (Assassination Classroom crossover. Izuku stumbles across a state secret.)
Class 1A Dad by Cpt.GingerBeard on FF.net (this is just a really cute take. Want to feel good? Read this.)
Lifelife by SilvermistAnimeLover on FF.net (this features forgotten characters!!)
These works are currently my top picks for "parent Aizawa" or "interesting plot" or "interesting take on the plot". I, unfortunately, had flushed my bookmarks a year or so ago so I don't have the largest collection anymore, but hopefully this is a good starter pack!
And if you want different or interesting takes in fanfic, try looking up fanfics on characters like Tsuchaushi or Sansa or Twice (or any other side character). Or crossovers. That can take you into strange places with actually some pretty captivating stories!
Anyways, sorry about being so late. I've been up to my nose in twenty-million different personal side-quests and trying to adult without burning something down. Wattpad isn't really a priority right now. But I hope this list is to your liking!!