Other than Escorts Canada you can also check out the advertisements section of the other board. Several indy ladies and agencies advertise there on a daily basis. I agree to avoid CL.
As for the type of lady you're looking for you may want to check out the following, keep in mind that I personally haven't met any of these ladies but they have positive reviews and fit the blonde spinner type:
http://www.adorablechloe.com/aboutme.html (reviewed as being GFE with a little PSE thrown in)
http://www.heidigermandoll.com/home.php visits Ottawa occasionally.
http://tempted2touch.net/ very reputable agency, they have a few ladies who fit your description.
Jazy (sorry, no website), advertises on EC and has been well reviewed as being an exceptional GFE, everything safe. I haven't yet met her in a SP capacity but did recently meet her at a local SC and I can attest to the fact that she is drop dead gorgeous.
http://www.ottawaatnight.com/pink-kitty-escort-ottawa.php/pa/v/gallery - Pink Kitty - their reviews on here have been hit or miss. I would suggest doing a search for reviews before booking. There's a new girl, "Leah", who judging from the pics has the redhead spinner look you're looking for. Haven't seen any reviews yet though. For PK, to see who is currently available on any given night just do a search for their phone number on CL.
Hope this helps!