Not promoting these guys so you would have to do some homework…
But Dorado. On my bucket list.
https://www.yellowdogflyfishing.com/...-in-argentina/
I watched a fishing show once. They were catching big dorado…which are really monster trout. Well..the angler was so excited in one clip he was holding a monster in the water and asked when they stop spawning. Guide looked confused and said it wasn’t spawning time. Angler said the bottom fins looked worn down. Guide then said it was due to piranha.
Lol. Angler never put his ha se back in the water.