Univision Holdings Inc. is considering selling Gizmodo Media Group and the Onion, a retreat from English-language websites in favor of media aimed at Hispanic Americans, Bloomberg News reported. The company has begun a formal process to explore a sale of the properties, such as Gizmodo, Jezebel, Deadspin and Lifehacker, according to a statement Tuesday. Univision’s satirical Onion portfolio includes its namesake site, along with Clickhole, the A.V. Club and other brands. Bloomberg and other news organization reported last week that a possible sale was in the works. Univision acquired many of the sites when it bought Gawker Media for $135 million in a 2016 bankruptcy auction. But the company’s push beyond Latino-oriented content has been rocky. It began offering Gizmodo Media workers buyout packages last month, aiming to reduce its editorial employee budget by 15 percent.