The sentence "Anyone here knows" is correct and can be used in written English.
You can use it when asking if anyone has knowledge on a certain subject. For example, "Anyone here knows how to fix a leaky pipe?".
"I don't know anyone here knows me well enough to be able to say I'm not a mean bastard at the moment.
"Everybody thinks they know what to do with Benton Harbor, but not even anyone here knows what to do with Benton Harbor," a veteran teacher at Benton Harbor High School told me.
" . . . and if anyone here knows any reason why these two should not be wed, any reason at all, like, say, something that might have happened after a long heart-to-heart and a few too many drinks, for instance, last week maybe, something you felt bad enough to bring to Confession, which you definitely should have, because it's pretty serious anyway, speak now . . .
Petric pounces in front of Dunne but heads straight at Given. 5 min: Congratulations Tony Conroy, who wins the free film recommendation with this email: "I'm following from Calgary, Canada and need a reason to wear my City shirt this weekend, not that anyone here knows what it is!
I don't think anyone here knows the answer to my question.
One of the biggest mistakes people from weird, inconsequential countries make when they come to the States is assuming that anyone here knows or cares about their native land.
"Does anyone here know anything about computers?" the terrorist demanded, at which point André came forward.
"Does anyone here know what he spoke about women?" Shouts came from the audience.
"I am opening up Pandora's box, but I would like to know if anyone here knew David Wildstein," the group's leader, Michele Florio-Campisi, wrote.
