My uncle immigrated to Canada. Can I rely on connections?

Family reunion immigration is only applicable to immediate family members (parents, children, spouses) and minor collateral relatives in the family (for example, your uncle applied for your grandparents' past, and your grandparents have a minor or raised child, so you can follow them). Your relationship with your uncle can't be treated as a reunion.

There is a situation that can be considered if you are underage and let your uncle "adopt" you. He and his family must have enough family income to prove to the immigration that they can bear all the expenses you add. Parents can also apply for "adoption" while they are alive, but only if materials are prepared to prove the necessity and belief of "adoption". At the same time, your uncle's family income is also important. Canada has clear regulations on the minimum family income of different members. Your uncle's income must at least meet the minimum family income requirements after you become a member of his family.