There really aren’t much good options. Maybe look into Merrick (both the regular line and Before Grain), TikiCat, or Nature’s Variety (both Prairie and Instinct). I honestly don’t remember if they contain carageenan or other bad ingredients, but they are typically considered the best.
There are some premade raw foods that do contain fish – Primal I know does have one formula with fish in it. I can’t think of any others at the moment that do have fish, most don’t because fish isn’t that great for cats ( http://www.littlebigcat.com/nutrition/why-fish-is-dangerous-for-cats/ has reasons why).
After lots of reseach, I personally ended up choosing to feed “prey model” raw, if you want info on that send me an email: wppwrf at gmail dot com (have to write it out like that to avoid spam). I do have one cat, Nightmare, that I am working on switching to raw, so far it looks like he will eat Rad Cat. Another five eat half canned/half raw, the canned they get is Before Grain (all the non-fish flavors), Merrick Surf & Turf, and then a cheap/lower quality canned, typically SophistaCat Elegant Entree.