Is there an ultra-trendy, must-have toy this year?

When I was a kid the “it toy” of the Christmas season would always get a local news segment about how every store was sold out of it. Now I’m not plugged into the parent loop and I can’t tell if google is giving me dated info, so I turn to you all - are there any super buzzy toys this year that are selling like crazy? I’m buying for a 7-year-old girl (not my child) and I want to get her whatever the “cool kids” at her school are getting (if it’s not something that’s obnoxiously loud or brain-melting)! (And I can’t ask her what she wants because of the type of gift exchange we’re doing!)