Luminary - FishMe Adds large red lettering to inform anglers to "Reel In", as well as what bait they should be using.
Votan's Fisherman Will show water type tooltips in the bait selection pop-up, as well as show water type and fish caught once you begin fishing a hole. Adds a more pronounced reel in animation. It also will automatically place a Harven's Custom Map Pins fishing pin onto your map at the hole's location. (Note: the map feature only works if you have Harven's add-on and it my not always select the correct water type, which is why it shows "fish caught in this hole" , on the map as well.)
Votan's Fish Fillet*New Add-On* Stops the need to constantly press the "Use" button, by filleting all fish in that stack. (Note: The animation is still played for each fish, and exiting your inventory causes all filleting to stop.)
Destinations*Map Pin WIP* Has the option to show fishing hole locations/water type on your map, along with many other map pin options. Note: Not every hole is shown (just the ones the dev has the locations for); and maybe 1% of them are labeled as the wrong water type.