Bigger Fish to Fry - Guide
Underlight Angler AP Calculator

Azsuna
Ghostly Queenfish (Rusty Queenfish Brooch)
Leyshimmer Blenny (Skrog Toenail → Aromatic Murloc Slime)
Nar'thalas Hermit (Pearlescent Conch)

Val'sharah
Ancient Mossgill (Rotten Fishbone)
Terrorfin (Nightmare Nightcrawler)
Thorned Flounder (Drowned Thistleleaf)

Highmountain
Ancient Highmountain Salmon (Funky Sea Snail → Salmon Lure)
Coldriver Carp (Frost Worm)
Mountain Puffer (Swollen Murloc Egg)

Stormheim
Graybelly Lobster (Moosehorn Hook → Soggy Drakescale)
Oodelfjisk (Ancient Vrykul Ring)
Thundering Stormray (Moosehorn Hook → Silverscale Minnow)

Suramar
Magic-Eater Frog (Enchanted Lure)
Seerspine Puffer (Demonic Detritus)
Tainted Runescale Koi (Sleeping Murloc)

Coastal Waters
Ancient Black Barracuda (Decayed Whale Blubber → Ravenous Fly)
Axefish (Message in a Beer Bottle → Axefish Lure)
Seabottom Squid (Stunned, Angry Shark → Landlocked Shark)