Excuse me, do skilled immigrants in Canada mainly refer to www.cic.gc.ca? Are there any other networks?

First, choose your own immigration category. If you are a skilled immigrant, there will be a checklist for skilled immigrants. Everything you need in it should be ready, and then everything (not only forms, but also many things), including money orders, should be handed in together. There are two fees, one is the handling fee, which will not be refunded, and the other is the immigration application fee, which will be refunded if it is unsuccessful.

One owner in a family can apply, and others, such as lovers and children, can just fill in the form directly. There are no requirements for other deputy applicants. After the main applicant passed, the whole family passed.

I applied for it myself at that time, as long as I followed the requirements on this website carefully, it was not difficult. I wish you success.