The best partner for Ramsey was Arteta, so out of the current lot it would probably be Xhaka - basically someone who can constantly find him with the ball. The problem with that partnership is that Ramsey isn’t the best partner for Xhaka - he charges off too often and leaves all of his weaknesses exposed.
Xhaka’s ideal partner will probably be Torreira (or someone similar), and I hope that’s where the buck stops, as those types of DMs generally aren’t reliant on anyone - they’re quite specifically there to cover for others.
This is why I’d like to see us try a 4231 with Torreira and Xhaka at the base, and Ramsey in the middle of the 3 - that way it doesn’t really matter where Ramsey decides he’s going to charge off to. Of course, that will likely mean Özil playing wide (at least on paper), but as you’ve suggested in the other thread, if most of his assists come from crosses and cut-backs then why not play to those strengths? It could work really well for us and him?
Anyway, that’s just one potential combo - I have my fingers crossed that we’ll have a few different shapes and combos in our locker under Emery, and that we might see more of a horses-for-courses approach to team selection this year...