I was able to drink protein powders fine before my surgery, but afterward they make me want to vomit when I just put them in my mouth. So, getting my protein in has been hard. I definitely lean on greek yogurt a lot or suck on a tablespoon on peanut butter. Cottage cheese is a good choice for something savory.
I can stomach these, as I can drink them in one go and it is easier: https://store.bariatricpal.com/products/bariatricpal-25g-whey-protein-collagen-power-shots-cran-grape
For when you are later in your journey and can eat more solid food:
I have also found a protein granola from Aldi (https://www.aldi.us/en/products/breakfast-cereals/granola/detail/ps/p/millville-protein-granola-assorted-varieties-1/) that is delicious and doesn't make me sick, which I stir into my greek yogurt to give it some texture.
I also eat nuts for a snack or babybel cheese, that I chew very well. I have had a DS, though, so I can eat higher fat food than a gastric bypass, so I don't know how helpful all of this advice is for you.