If you're still looking for some meme and PSL stuff, My Adventures With Superman has me thinking about the idea of Clark meeting some of his superhero friends at a younger age. I can imagine a younger Clark would be positively giddy to meet someone with powers like his, even if it's not quite the same story.

On top of that, I've got some Star Wars folks, and a very heavily viking-flavored OC that could be easily worked into an einherjar to meet Diana, or a Skelliger to be stoic with Geralt.