I am not familiar with hop susceptibility genes, but definitely possible some are more susceptible. It looks like you're starting to harvest (unless those are gherkin cucumbers in the bowl!) So I wouldn't spray any insecticides at this point. Neem oil would be the safest but I gag to think of what that could do to the flavor of beer if any got in. If you're going to rinse them really thoroughly before using, you could start spraying the plants with a thin mixture of soapy water (15mL dish soap to 1L water). Be warned though the plants won't love it either. Do it early in the mornings and not on a day it might get heat stressed.
Tall ornamental grasses can attract predatory beetles and lacewings. If you want to look up some more details, what you'd want to make is called a "Beetle Bank" - it is to butterflies or bees as butterfly or pollinator gardens.
Beetles spend most of their lifecycles in tall grass roots. Lacewings will use the tall blades to hunt and warm up their wings.
Aphids reproduce insanely fast (it's pretty disgusting actually) so your best bet would be to catch them early next season.
Take pics of any insects you do see. Aphids are surprisingly diverse. One time I thought I had a bunch of downy mildew on my hops, only to see it take flight when I was watering! Turned out to be a very nasty woolly aphid infestation. I had no idea they could be so fuzzy!