Day after waivers

Plugged LA Chargers defense in for week 4 bye Carolinas defense. Dropping the Chargers defense, have have the option to pick up a player. Now I am a Will Fuller owner and am having trouble wether to add him to handcuff fuller, but also Larry Fitzgerald is available, who is the better option to stash? Have Devante Adams, Ju-Ju and Corey Davis, Keelan Cole on my roster. Which player is worth adding? Thank you