I tried searching on reddit and holy **** it is a topic that is 100% dominated by spammers selling their own personal service.
If you click on anybody’s profile you can see they exist solely to recommend one particular iptv service. I can’t see any human recommendation!
If you're looking to go sailing, check out that type of add-ons for Kodi. They are a bit cumbersome to use, but you can find almost anything.
If you're looking at paid services, I've had my hands in most of the legal paid "TV-channel" based services for American TV at some point. I'd probably recommend SlingTV the most, but that's because it's cheap. It's going to very much depend on what you're trying to get as to what is best for you.
If you're looking for other "IPTV" services for American channels outside the known legal ones, well those are illegal distributors and might as well just go sailing in your own boat for free at that point.