Leaf streak does affect some cultivars more than others but the only extensive susceptibility list I can think of would be from a university dissertation/thesis on leaf streak quite a few years ago. I can check out which of two studies that I've seen have the list and post a link to it but if you're looking for daylilies hybridized in, say, the past ten or fifteen years then it won't help much. Let me know if you'd like to see the list.
