[quote=@SilverPaw]
The fisherman position would fit them the most, I think, though I wouldn't mind going for a spear bearer or maybe even a scout, either. 
[/quote]

They could all work. I think there's a fair amount of crossover between the three positions, since you can have Spear Bearers who fight at close range with a spear as opposed to throwing them, Fisherman who fight at mid-range with a reel and Scouts who act as the first striker in team fights; Regulars who can switch positions between two of those roles probably aren't that uncommon even on lower floors, especially since Fisherman don't seem to require special skills like the other positions.

I guess the most important thing to think about is the position classes. Who do you want to be peers with?