Been eyeballing this stuff for the price.
https://www.amazon.com/dp/B08777RSW2/ref=twister_B0877678XH?_encoding=UTF8&psc=1
Have no idea about quality. Would prefer higher breaking strength. I found it when I was looking for a less expensive form of this.
I love the stuff from west marine, but a bit pricey at 8 bucks for 50'. Has a higher strength rating, but they could be closer that the listed ratings.