we know that quirks are genetic, we know that there are a lot of ships that exist...I think you know where this is going.
combine the quirks of two characters and make a rough idea as to what quirk their child would have. for ochaco and midoriyah well...I don't think OFA can be passed on genetically (unless they make a story arc where shigaraki finds out he has OFA which would be an amazing plot-twist) but I believe izuku has his mother's quirk in his genetics and thus, the child of izuku and ururaka would have perfect telekinesis: a combination of zero gravity and attraction of small objects. able to float both small and large objects towards themselves effortlessly. a combination of mina's quirk with kirishima's quirk would be an actual quirk OC I thought of: the user is able to excrete a white fluid which they can control the shape and hardness of, the fluid can be solid and hard as rock or liquid and flow as smooth as water. this seems to be what a combination of acid and hardening would be. to make it easier, lets not think about the LOGISTICS of it but the simple COMBO, so you can combine the quirks of people who are the same gender or those who aren't even shipped. I wonder what kaminari and Jiro's quirk combo would be...