Recently I've been listening to a lot of sea shanty music. I've come across some good artists like The Longest Johns, Stan Rogers, Johnny Collins, David Coffin and The Dreadnoughts.
I feel like there is a lot of flavor to the music, each artist has a very distinct melody and style (not unlike other genres) I just feel its much more pronounced than most.
Here's some recommendations to get started:
https://thelongestjohns.bandcamp.com/
https://www.youtube.com/watch?v=mDjOAsxeokw
https://www.youtube.com/watch?v=-d3XHQVMHDM