There are also 128GB Pixels available, but that's still less than 256GB, the battery is mediocre on Pixels as a rule of thumb, and the 4 series doesn't have a fingerprint sensor.
I'd say wait for the 8 Pro, the release should be around the corner, GSMArena says April the 14th. Alternatively, the Galaxy S20 Ultra is available right now, is a camera powerhouse, but I don't know about the fingerprint reader, as that part was criticised on the S10/S10+, and allegedly they haven't improved it for the S20 series (they use an ultrasonic sensor as opposed to 1+'s optical one). GSMArena calls the fingerprint scanner 'way behind the competition'. Besides, the Galaxy One UI experience, although vastly better than the TouchWiz back in the day, is still acquired taste.
And from flagships with 256GB+ of storage, a decent camera and a good fingerprint reader, that are available in the US, I think that's pretty much it. I'd avoid the LG V60 ThinQ as it tops out at 128GB, which is expandable via a MicroSD slot, but that's just not as fast as built-in storage. The Galaxy Note 10+ is a bit long in the tooth, and the iPhone 11 series does not come with a fingerprint scanner.