In our 10 years of RVing and 5 years fulltiming, we’ve tried out a lot of sewer hoses. My favorite for a long time has been the Camco Revolution hoses. They’re simple and generally less expensive than alternatives. They hold well but aren’t so crazy tight that you can’t get them apart from other fittings.
They’ve been solid performers. I start with a kit:
And then I’ll typically add another 10′ length: