You won't be disappointed with any one of the following:
Bobbi ($250 per hour)
Laney ($200 per hour)
Leo (formerly Domenique)
I believe all three are indies, although they share advertising/phone services.
Laney probably has the best body and its without tattooes, stretch marks or flaws. Bobbi and Leo have good bodies as well, and facially are a little prettier than Laney. All three have great attitude and service.
Oh yes. Laney and Bobbi are room-mates and bi, so if you have a lot of energy and money go for a duo.
It's sometimes hard to book these 3 on short notice so you may want to book them before you leave for Toronto.
If you want incall, use Roommates. If you want an agency, Hollywood seems to be routinely recommended and Allison's Angels has also had some good recommendations in the past.
Suggest you check out Laney, Leo and Bobbi on TER and TERB (all are highly rated) and then also check out the various girls from Hollywood on TER and TERB as well as any other names people may suggest.
There's lots and lots of great SPs in Toronto. As they may not be available on short notice you may want to create a list and prioritize the SPs. You may find that your choice will be limited to who is available on the day and time you want.