Is a backpack not sufficient or convenient?

Backpack.

I always use a backpack.

PacSafe backpack.

Backpack is the best because it is cheap, has more security options and has more room, people who use briefcases are still stuck in the 50s lol and think people care what you bring to the office.

Baggallini makes water-resistant, antibacterial bags. They are lightweight and resilient, and available in many styles and sizes. I have several, my oldest one is 12 years old and I’ve used it on weeks-long treks in Europe almost annually, and it still looks good. They are well made and reasonably priced.

I’m fine with a backpack but let’s get more specific. Best one? Comfortable storage options. Cute.

Can’t give you a specific but just look into any kind of outdoors brand ie the north face / Patagonia etc. you’ll want it to have some kind of weather proofing for the fall/winter

If you don’t plan on going through the bag during your trip then try a backpack. I have this one and like it a lot: https://a.co/d/0udpWoH

If you’ll be going through the bag during the trip for your coffee or a book or whatever, I’d do a cross-body bag. Going in and out of a backpack more than once is a pain. Baggallini is a good brand - maybe something like this? https://www.baggallini.com/the-only-bag/OOB760-BG.html

Browse in TJ Maxx/Marshall’s and I’ll bet you’ll find something.

I personally use multiple fanny packs. I fit four of them from my waist to my chest. You should give it a try !