Flier Miles Are There Other Ways To Get Frequent Flier Miles Without Booking With A Star Alliance Airline, Etc?

Are there other ways to get frequent flier miles without booking with a star alliance airline, etc? - flier miles

Hello, I'm planning a trip to Malaysia in January in Canada, so I think we could get a lot of frequent flyer miles for something, but when I looked at the site of United Airlines, I have a card with a mileage between them, but the flights are over a thousand dollars more than the others I found. Is there a way to earn miles when I posted from a site like Expedia or Kayak, etc. ... so I save a lot of money?