If you’re not overly concerned with sugar content, try some flavoured milk. I bought some banana flavoured soymilk (Alpro I think) a while ago and put it in the fridge overnight with the oats, was amazing, didn’t even need any added fruits or whatever, though I did add some walnuts I had laying around (after the soaking in the fridge).
Lmao why even specify cow milk, any milk is fine. You even mention how you prefer oat milk afterwards 🤯