You've probably installed a shelf or coat rack onto drywall before. If you have or haven't, a recap never hurts. Some anchor options are plastic expansion anchors, toggle bolts, Molly bolts, and threaded drywall anchors. If you're not planning on putting super heavy objects on your new item, then plastic screw anchors will work perfectly.
To insert a Molly bolt anchor, you'll need to use a drill bit that is exactly the same diameter of the anchor. Insert the screw into your Molly bolt. Using that bit, drill a depth that allows you to insert the entire Molly bolt inside. Then, place the pilot hole on your new item so it matches up with the anchor hole and drill the screw into the anchor. Stress test it to make sure it feels secure, and you're good to go!
NOTE: Since we provide drywall screws for you, anchors are not necessary to mount your item. If you do decide to have anchor support however, these screws are compatible only with plastic screw anchors and plastic threaded drywall anchors.