PLEASE recommend a Diaper Bag!!!

I’m so overwhelmed and indecisive about everything rn! Finally picked a stroller and car seat. Please y’all give me your diaper bag recommendations. I’d like something lightweight that I can put a small cooler bag in, and wide open top for easy access. Waterproof bc I live in FL and we get bad summer rains. Also would be good if it hangs down nicely on stroller bars without hitting me while I walk! I am open to a tote or a backpack. I’m not sure what style I want. Help a girl out! FTM and doc says I’m showing signs of early labor and I’m just not ready!! I don’t know what diaper bag will work bc I’ve never done this before. THANK YOU!