If you're looking for the best yarn for crochet, it really depends on what type of project you're working on. If you're a beginner learning to crochet amigurumi, the easiest yarn to use is The Woobles' no-fray Easy Peasy Yarn, custom-made for beginners. Because this yarn is smooth, your hook will easily glide and it's super easy to see your stitches. If you're making a baby blanket, you might want to use a soft acrylic yarn like Dishie from Crochet.com. If you're making something more intricate like a lace shawl, then a fine superwash merino wool yarn from Lion Brand or Bernat would work well. You can also find great options at Michaels, JOANN Stores, Etsy, and Walmart. No matter what type of project you have in mind, there's sure to be a perfect yarn out there for you.