Just one year after DC Comics debuted the Justice League, Stan Lee and Jack Kirby crafted a super-team of their own called the Fantastic Four. Mister Fantastic, the Invisible Woman, the Thing, and the Human Torch are cosmic explorers, and their paths have crossed with plenty of other Marvel superheroes.
Source:https://www.cbr.com/fantastic-four-comics-best-hero-team-ups-ranked/