My sister is in Canada. How to immigrate?

Since your sister is an investment immigrant, I suggest you immigrate to work as a laborer. Just ask your sister to invite you, but you have to prove the reason why your sister invited you, or ask her friends to invite you. Of course, this is just a way to immigrate, and you are not really required to invite you to work. The reason is that there are generally few people there, so it is best not to have your unique skills or spend money to post newspapers there for a while and then invite you to go. Suggestion: say that you can cook Chinese food, but there is no one there, so you should do it, so that labor immigrants should be able to do it. Of course, you may not be able to cook, but it is easy for you to buy a chef's license.