As much as I hate to bring up a sore name on the Superman boards, keeping the romantic story elements to a minimum seems to work well enough for Batman. Sure, you have some Bruce/Selina shippers but ultimately people love the action/adventure nature of Batman's stories. No reason we can't do more of that with Superman. Just have some fun sci-fi adventures for a while. Don't worry about who he's with. I certainly don't mind romance in a comic. I actually can enjoy it and find it makes the characters more believable for me to have them pursue relationships. Though I don't think it should be a primary focus of the story. Really, Superman appears in a book called Action Comics. Action is right there in the name. I'd keep any relationship focused stories in relationship geared books. Want to see Superman's relationship with Lois and their son? Then keep the Lois and Clark book around. Want to see Superman's relationship with Wonder Woman? Keep the SM/WW book around. Use the couple books for romance with some adventure. Use the other books for adventure with a little romance. Shift the focus based on the target audience for the book.