Looking for a chunky, warm knit blanket to cuddle up with on the couch. Where should I look?

As the title says, looking for a warm, chunky knit blanket with natural fibers to cuddle up with on the couch.

I currently use a heating blanket but I know it’s poly and probably on its last legs. Where can I find a quality, chunky knit blanket? I usually use at least a size Full to get a good cuddle.

Thanks. If there’s another sub for info let me know.