It depends on if they add another character or not.
They meant a Venom solo game, kind of like what Miles got, not a new Miles game, I could see that personally.
I'm sure a Spider-Ghost game would sell well, Gwen Stacy is pretty popular now with the Into the Spider-Verse films. I don't think Gwen is ever mentioned, they can just make Spider-Ghost that universe Gwen Stacy and not bringing the multiverse. Now what I would want is a Silk game but I'm probably one of the few person who really like that character lol.
And a Venom game would sell a loooot too.