So I got the Ortlieb Velo Shopper, and while I want to like it, I don't. I like it's QC 2.1 mounting system, but I don't like it's size/shape. With the taper at the bottom, you can't even put a carton of eggs in the bag without standing them on end. I've been using
https://banjobrothers.com/collections/panniers/products/market-pannier on my previous bike, and while they are clearly kinda cheaply made compared to the Ortlieb, they actually fit groceries much better. I also like that it's easy to leave the lid of the bag open or to fold the lid inside the bag. The other day I put a pair of folding chairs in the Banjo Brothers, and just had them sticking 2' out the top. I can't comfortably do that with the Ortlieb.
Anyone have any other good recommendations that will fit on a SD rack? I don't need waterproofness. I may just try to see what I can do to make panniers that attach with a bungee on the bottom work on the SD, as that opens up more options.
I have R&M's front carrier bag on order (ETA by end of the month), so that will cover me for smaller items I want to bring along.