Main idea is to make fishing as another food industry so we could have oportunity to choise between fishing and baking, or anything else what can appear in future. Like entirely another method of gaining food but not worse as it is atm.
Fishing is not as safe as farming coz you can get killed so this is a serious choise. And this must be rewarded with ability to find some fine curios or simething else.
1. Better and bigger fish.
Add bigger and better fish that u can catch when you will got enough survival and needed fishing gear quality (or you can add fishing skill vs farming).
For example shark, you will need metal hook for it and enough survival to gain a chance to catch it + some fishing pole Quality. Shark can require 2*5 inventory space and give same amoung of food servings, also maybe you can find some objects in sharks stomach

2. Better and harder-to-make seafood recipes.
To make another option from baking. You can add some salting barrel vs oven or something like that.
3. Faster fishing with lure with better fishing gear quality and survival. Like fishing speed = fishing gear Quality * survival.
4. Fishing boats. With 4 container slots but a bit slower than usual boat.
5. Maybe fishing snares that will do your fishing duty for you but can be destroyed\stealed by other players. But im not sure in this.
6. Less random in when-and-where to catch desired fish. In order to be other food industry we need to catch desired fish constantly. Moon calendar and bite is AWESOME idea but it does not work coz i catch compleatly random fish with same lure in same circumstances. It works in real life why not in HnH.
7. And PLEASE! Constant fireplace for roasting meat. Im tired of making fireplaces.
Thank you for reading.