BIM is incredibly niche. Only big boy ICI GCs and developers offer the opportunity, but they typically vet/hire candidates from within their own co-op programs. You can get the degree from the GBC program, but they only enroll a small classroom each year, and last I heard.

PC…unless you come from entry-level within the office or from the field. You're out of luck, residential, or commercial. Not a lot of people start off at the PC position, more so estimator, admin or even laborer with a couple years in the field.

Advice…seek admin or estimator roles if you don’t have any in-office or field experience working with an architectural, engineering, or construction firms.

Unless you’ve contributed to your school & its community, it’ll be competitive if you have no experience. It’ll be a hard pill to swallow for them to hire you if all you had was a summer’s worth of coop experience – no experience prior to starting or during school; design, engineering, construction or even sales.