All pre MCU marvel movie characters exist in Tobey Maguire's spiderman movie universe
In the graphic novelization of the Sam Raimi spiderman movies mentions of characters like the x men and Ang Lee's version of the Hulk are mentioned. Hugh Jackman's Wolverine from the original x men trilogy is also supposed to exist in Tobey's spiderman universe as shown in a deleted scene from the x2 wolverine's revenge video game. Captain America gets mentioned by uncle Ben in the comic version of the first spiderman movie. Doctor octopus's arms were said to be built by Otto with help from Tony stark and hank pym who are both active superheroes in the Raimiverse as per the comics. The only problem here is that the Avengers as a team never got formed. However other teams like the x men and even the fox fantastic four are probably present in this universe. There were also major plans back then to include all 2000s marvel movie characters in the same universe.