@Yukonrookie They're based in Saskatchewan; Saskatoon specifically
I've tried, Wicket Craig, Seidel, Speici, SB Foot, Law Tannery (very thin feels great) , Arif & Sons, Horween and their own OA Original, One thing that I like is you don't always have to order a full side or full bend. I got started in leatherwork because I wanted to make a notebook cover. Didn't know if I would like leathercraft so I order 2 sq feet of 3/4oz black latigo by Wicket and Craig. No idea what it was but I thought it looked good. Also got one of their 'mystery' bundles. I was surprised by how much came in the bundle and how big some of the pieces were.
Aside from visiting the local Tandy store, another Canadian store I've also ordered from is Hand and Sew (https://leathertools.ca/) They have some great exotics. You have to spend $250 before you get free shipping, but that's not hard to do.
You might also want to check out the following post. There are a couple of links that don't work but overall it's great list. A lot of stores have free shipping if you spend a minimum amount. That varies, but it's not hard to meet most minimums.