With some exceptions, most of them have a peripheral association with Spider-Man at best and are pretty obscure: Jessica Drew is more of an Avengers character, but has built a comradery with Spider-Man in recent years; Charlotte Witter, better known as the evil Spider-Woman, is one of the many characters to use the name who actually became a villain; Sara Ehret, a reluctant superhero who Spider-Man convinced to not waste her powers once; and Cassie St. Commons, a kind of half-dead supernatural character whose superhero name was once used by Spider-Man.
Calling some of these Spider-Man characters is a bit of a stretch, but I suppose Sony has to use what it’s got.
The characters listed by the uncited source are curious to say the lease.