Any interesting fish species i can research?

in science, our teacher wants us to roll 10 fish we want to research. i don't want to research non-interesting fish (say...the goldfish?). any suggestions?
maybe tiger barb and how many different types there is
Plecostamous' come contained by MANY different shapes and colors, from green and gold, to red and black, even zebra striped. They also have many different texture, bone plates on their sides and spines used for stabbing things.
Vampire Tetra (amazing)
Birchir, ancient fish
Gar, another ancient fish
Snowflake Eel, beautiful coloration
Goliath Tiger Fish (another amazing fish)
Piranha of course haha
Just about any Angler fish is cool (especially the camo ones)
Lampreys are abnormal with circular mouths, scariest fish i've ever seen.
Chimaera Pup Rhinochimaera pacifica
Blob Fish Psychrolutes marcidus
Fangtooth Anoplogaster brachycera
Oreo Dory Allocytus niger
Umbrella Mouth Gulper Eel Eurypharynx pelecanoides
Viperfish
Gunard
Lizard fish
Freshwater bat shark
Goblin shark
Mexican Walking Fish aka Axolotl, they are an interesting lizard like underwater creatures.

They can breathe contained by and out of water, they can even turn themselves into salamandas. I have 2 and they are the weirdest things ever:)
Knife fish, close to black ghost or clown; rays are awesome; snakeheads are unique; wolf fish are vicious
Guppy
Sunkiss Platy
Ghost Shrimp (kinda a fish)
Mollies
Tiger Barbs
Siamese fighting fish
Bluegill
Ghost fish
Japanese koi
Piranha
Answers:    Here are some intersesting fish:
-Lionfish
-Saltwater Puffers
-Dragon eel
-Gem Tang
-Seahorse&Pipefish
-Aquarium Sharks(they look like catfish)
-Plecostomus catfish(Plecos for short)
-Queen Angelfish
-Queen Triggerfish
-Corydoras
-Bumblebee Goby
-Brackish water puffers
-Female bettas(together in a tank)
This should be fine I these interesting
The Goblin shark is pretty cool. It's rare so im not certain what kind of info you may find. Don't go to wikipedia.
well my fasination is piranhas in attendance supper agressive (some species such as blacks and elongs) i have red bellies and a black one the black is just mean the reds are propose but extremely hungry but deffinetly cool to reserch and if their to much for u try the oscar cichlids there cool big and strong i got 5 and in that awesome mine have lived without water for close to 20-30 minutes so u no there crazy fish and also they can tell the difference between me and my mom i feed them and the gait the tank cuzz they n there egttin fed next to her they just ignore her lol but deffinetly a coo lfact
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