Use Helpmefind.com - it's THE rose authority on the net. You can do an advanced search for different groups of roses, for example you can look up just "Canadian Explorers" and just "ARS Pink or Pink Blend". Don't limit your search with parameters like height or bloom period, because a lot of their data doesn't include that so it would narrow it down too much.

About half of the roses I personally posted are hybrid teas and not hardy like the Explorers and Mordens.

Many of the beautiful hardier old roses such as the Alba group and some of the Gallica group are once-blooming which is something to consider, it might not excite everyone to have a month of blooms and then nothing.

There are sooo many must-have roses for the Far North! I laugh when people ask for "just one rose" - not if we can help it!! LOL

Here is a link that might be useful: Helpmefind Rose Search

When I first started searching for roses that were hardy in Saskatchewan, I researched recommended roses from the Canadian Rose Society. They have recommations for zone 2. Also if you live in Saskatoon, go check out Dutchgrowers or Wilsons. Just ask the girls that work there and they will be able to tell you which ones they are. You'll be able to see some of the Explorers or Parkland roses blooming. I honestly wouldn't recommend buying them now. I'd wait until next spring so they would have a better chance to root before winter.
Shelley

Here is a link that might be useful: Canadian Rose Society