We need more terrifying characters.
Besides humour, there is nothing more interesting to me than a character deciding to try to reach the top, and actually trying. Like seriously, if Bakugo got his skills from actually training after school and not just instinct then he'd be doing decently, unlike some of the others. I do realise that maybe they're not so concerned about reaching the top or being the best they can be and have school and shit, but there's so much potential for some characters that it's ridiculous how far over the rest of the class they could be if fully immersed in training.
Tenya is one tragic murder of his brother away of someone telling him "if you want to avenge him, get stronger" and him finding someone with a numbing quirk and someone with a healing quirk and paying them to remove his mufflers once a year and heal him before training his ass off. Dude could reach All Might's speed if he really wanted.
Uraraka has the weird quirk that can be interpreted by her being able to eliminate weight but control mass, or by her being able to control buoyancy, or a bunch of other reasons for the weird behaviour of what her quirk affects.
Kaminari could basically be the third Raikage.
Mina and Shouji could have entire fics of biological modifications to their bodies. The first by using trigger to unlock (amino) acid control and the second because he isn't just making the body parts he normally has since he can't normally hear as good as with the ears he makes.
I've already talked about other options for Momo's quirk development, but honestly, with a bit of thinking she can replicate Mineta's, Sero's, Bakugo's and Ida's quirks to a certain level and that's not even the best she can do with it so if that's not OP idk what is. That's also only the quirks from 1A she can mimic, honestly the sky's the limit for her.
Tsuyu mostly only has stronger legs and her tongue, yes, but Mirko also only has stronger legs and Stain doesn't even have that. Plus she later reveals she has poison and invisibility? Yes, it's weak, well duh, she's basically raising her siblings apparently (this may be wrong) so she doesn't have that much time to train.
Tokoyami. Literally just a black bodysuit that has a 2-5cm empty space between the outermost and innermost layers. Stronger doesn't mean bigger. Absolute dark, cut proof material, Dark Shadow acts as the armor and is protected from the light, some holes in the knuckles of the gloves so DS's claws can extend, literally a sentient powersuit, can even have DS face backwards so Tokoyami has control unless DS spots a sneak attack and reacts. That way DS protects Tokoyami and is satisfied but doesn't witness most of the action and is less likely to get angry and lose control.
Anyway I got a bit distracted spouting ideas but yeah, mostly Izuku is the only character that gets to be terrifying despite others having such great potential for it (imagine Tsuyu fighting like Toga + sticking to walls + camouflage) and I want to see more. Give them fitting combat styles (Ida doing capoeira or Momo using Shikotsumyaku), extensive quirk training in the right direction (Kaminari training internal control instead of external max output) and some backstory or just pure determination (Uraraka always having her fighting intent while training or fighting).