Warning: SPOILERS for Avengers Forever #9Marvel's Spider-Man has many stories about the Spider-Verse, but they all pale in comparison to Captain Marvel's own Captain Marvel-Verse, and the Avengers universe will never be the same. Carol Danvers is one of the more powerful superheroes on the current team, and is capable of handling world-ending threats all by herself (and has done so on more than one occasion). In Avengers Forever #9, Marvel assembles an entire army of Captain Marvels to take care of a universe-ending threat, and in the process overshadows the more famous Spider-Verse.
The Spider-Verse began in 2014 with the comic crossover story of the same name, and quickly gained popularity with readers and fans of Spider-Man. Seeing the many Spider-Man variants fight together to stop a common threat was a storyline Marvel was quick to capitalize on to a ludicrous degree; individual books for Peter Parker, Miles Morales, Gwen Stacy and even second-stringers like Spider-Man Noir and Spider-Man 2099 were all ordered and published in relative short order. The current success of the Marvel Multiverse is in part due to the success of all Spider-Verse stories past and present.
In Avengers Forever #9, by Jason Aaron, Aaron Kuder, Cam Smith & Guru-eFX, the latest Marvel Multiverse story chronicles the life of Carol Danvers, a variant who hails from a dystopian Earth ruled by the Hellfire Club. They worship the Dark Phoenix and gleefully shoot down any other being - bird or otherwise - that flies. Danvers is little more than a slave attached to a massive weight, preventing her from flying. When a member of the Hellfire Club accidentally removes the weight, Carol wastes no time in fighting her enemies and escaping to the skies above. There, she is greeted by a Helicarrier - along with hundreds of versions of herself. Carol, along with the reader, has just entered the Captain Marvel-Verse.
The members of the Spider-Verse are indeed powerful, but this army of Captain Marvels beats them in nearly every way. Presumably, every person onboard the Helicarrier has Carol's powers and abilities, and many have more: readers can see Carols with swords, powered armor, and multiple cybernetic enhancements. They'll need every ounce of power they can get: the Avengers Forever series focuses on recruiting these variants to stop the Multiversal Masters of Evil, a terrifying threat.
The Carols are only encountered toward the end of the issue, so not much is known about them other than their appearance and their sheer numbers. If one Captain Marvel can defeat a city-destroying dragon (as seen in the latest Captain Marvel comic written by Kelly Thompson), one only wonders what an army of Carols can accomplish. Spider-Man, for all his many variants in the Spider-Verse, simply cannot compare with Captain Marvel and the power of the Captain Marvel-Verse (even taking into account their mysterious mission).