In the 21st century, the Avengers finally took their place at the top of pop culture. Looking back at Avengers history, they were always comics' second-best team; while they were more powerful than the X-Men and the Fantastic Four, both of those teams handily outsold the Avengers for the majority of the last sixty years. It's really only been since the '00s and the rise of New Avengers that the Avengers finally took their place at the top of the sales charts before the MCU came and blew things into the stratosphere.
Source:https://www.cbr.com/best-avengers-marvel-comics-are-like-justice-league-dc-comics/