floor on driver side wet
The AC drain is probably clogged.
If you have a sunroof, check those drains as well
a/c drain wouldn’t be likely to drip onto the drivers side.
Any sloshing sounds when you open and close the door? The drains at the bottom may be plugged, causing water to overflow into the passenger compartment.
Okay then, you’ve determined what the problem isn’t. Any idea what it is?
nope, or I would have offered that up. But no sense in sending OP on a wild goose chase. Pyrolord, NYBo and Tester offer decent ideas. I’d start there.