Just an aside gleaned from my French training, turkey is considered game (not withstanding the new breeds in the market that are almost entirely white meat) and consequently calls for red wine. I recommend a pinot noir.
I don’t know about “classic”, but here is a link to some ‘vintage’ sweet potato pie recipes:
http://www.vintagerecipes.net/recipes/desserts/pies/sweet_potato_pies/
‘Classic’ Southern made-from-scratch sweet potato pie:
http://www.tasteofsouthern.com/sweet-potato-pie/
Creamed Pearl Onions (gets great reviews)
https://www.tasteofhome.com/recipes/creamed-pearl-onions
Corn custard (made in ramekins - not sure how it would do in a larger dish)
http://allrecipes.com/recipe/235359/chef-johns-creamy-corn-custard/
I know you didn’t want ‘corn pudding’, but this stuff is the best ever - more popular than my grandmother’s corn pudding .... super easy, too.
http://www.cooks.com/recipe/5s9s40yj/corn-pudding.html