I very much look forward to the Finn/Poe bromance (romance?) as I think there are many possibilities (and it’ll surely be great fun). Honestly their interactions and the Rey/Luke dynamic are by far the things I’m looking forward to the most.
The one unfortunate thing about TFA is that we never saw Rey and Poe meet. Surely they did, but off screen. Just a little frustrating that the new trio hasn’t completely had a proper introduction to each other and also who knows when we’ll actually get to see them as a trio (though the OT trio is together not all that often and the PT trio almost never).