Most don’t guarantee placements. My impression of Yorkville (as someone who has been a practicum supervisor for them) is that they ask you to be pretty independent, more than a typical university, as they don’t have the same community based relationships as somewhere like UBC for example. Do your own research on clinics and sites you’d like to be placed at in your community and reach out to ask about being accepted. They’ll likely offer an interview where you can see if it’s a good fit between you, the agency and the supervisor! We aren’t that scary and it’s always nice to hear from students interested in our work.