Jobssite will not only help you find your dream job but also help you prepare to get it. I have used their services before and I am very satisfied. I first applied through their website and they quickly contacted me to clarify my preferences. They even offered assistance with my resume and cover letter. I found this to be very convenient, and they do have a good database of job openings for administrative assistants. I also recommend reading their article on interview questions for administrative assistants
https://jobssite.ca/most-common-administrative-assistant-interview-questions/ , it may help you prepare for questions employers may ask. Glad to help you!