I've been thinking about posting something like this. Beat me to it.
There's a thread dedicated to Me-264 variants on secretprojects (
https://www.secretprojects.co.uk/threads/messerschmitt-me-264-variants-and-projects.3862/ ) with some very good images. My personal favorite is the one with four pusher props and two jet engines. Vaguely reminds me of a B-36. There was also the six-engined variant unofficially titled "Me-364."
One proposed variant that really piqued my interest was a steam-powered version.
It's still not known if this image depicts steam turbines or large heat exchangers, but either way, it's a funky design.