Jeff pretty much covered my ideas (plus a couple thoughts I didn't have, like chowder or quiche, both sound good).
A few thoughts:
as opposed to eating it with crackers, for canapes I tend to like on hearty bread, cucumber slices, or apple. Capers liven, as does lemon and horseradish (if straight prepared hr is too much for you, can make hr sauce with creme fraiche, yogurt, mayo, or sour cream)
I had bought a large slab of smoked salmon before Christmas, used a bit for one party for canapes, and then a guest brought (delicious) gravlax. Cured salmon overkill. Bagels helped. And as Jeff suggested, for lunch one day Betsy made pasta, she tossed some of the smoked salmon (chopped) in with broccoli, lemon, and creme fraiche.