Toss sliced shallot with 1 tbsp of the vinegar + a pinch of salt. Let sit 10 minutes.
Make the dressing: whisk vinegar, dijon, honey/maple syrup, salt, and pepper. Whisk in olive oil until a glossy vinaigrette forms.
Toss greens with enough dressing to lightly coat. Top with pomegranate arils, orange segments, nuts, goat cheese, and the shallots.
Add a final light drizzle of dressing over the salad.