Based on your helpful list of desired traits, here are some that might be worth peeking at. Finding evergreen, high bud count and resistant options is easy with the DL database search. But, since no single source seems to always note clump-versus-rhizome, scape strength, colorfastness and rate of increase ... those are things that, once you know you like the look and other features you want, you can easily use the ATP database and forum to learn about those other characteristics.
People often post a thread to the forums requesting information about a particular cultivar from those who have actually grown and observed it in various garden settings. And, you can also treemail people who have posted their photos in the database just by clicking on their user name and linking to the treemail option. This is helpful even with the published data since, for example, there may be differences between the hybridizer's results and less intensively maintained home garden performance.
You can always check the ATP listing to see if owners have a particular cultivar for trade or sale (not applicable to those in states that have restrictions...) as well as for photos posted by commercial sellers, with their links to use as a starting point in your search. Googling is, of course, another level of exploration for finding more info and sale prices, etc. There are also links to Daylily Forum threads that may have mentioned the cultivar, shows at the bottom of the cultivar's ATP page.
:
Roses and Gold (One member who owns the plant lists it as "for trade or sale" under the link "From Our Plant Lists" at the top of the ATP cultivar page)
One member comments on the cultivar page on its long blooming habit and good performance under intense sun
Evergreen, Resistant
36+ buds
Citrix ($12 @ Maryott, or hybrid seeds ~$5 @ Amazingdaylilies)
Evergreen, Resistant
40+ buds
Yesterday, Today, and Tomorrow ($10 at Wynn's Daylily Garden)
Evergreen, Resistant
26+ buds
Spacecoast Fancy Dancer ($5 single fan at SomethingNew; one ATP member has listed as a potential Trade)
Evergreen, Resistant
40+ buds
One recommendation in the ATP cultivar comments section
Inner Destiny ($10 at Peace on Earth Gardens - One ATP member has listed as a potential Trade)
Evergreen, Resistant
36+ buds
Insider Trading ($7 @ Cheryl's Daylilies)
Evergreen, Resistant
36+ buds
So Many Stars ($10 @ Bluegrass Daylily Gardens)
Evergreen, Resistant
36+ buds
One comment about clump in ATP cultivar comments section
