Upvote:1
To find places, I've had success with finding places via http://www.bbcanada.com. Despite the "90s" look of the website, the information does seem to be accurate, up-to-date, and with more smaller places listed than anywhere else I've looked.
To find objective reviews, given the small size of B&Bs and their low volume of business compared to traditional hotels, I doubt there is a centralized objective source - you'll have to look at several things, such as:
Also, hotels/B&Bs that have a highway sign (see http://www.mtc.gov.on.ca/en/tourism/tods.shtml ) must meet certain quality standards before being allowed a sign, so this may be an indication as well. However, as far as I know these criteria have more to do with "playing well within the tourism industry" than your actual guest experience.