I think it will really depend on the bag, the shape it is in and its current appeal. There are consignment sites out there like www.fashionphile.com, www.yoogiscloset.com, www.annsfabulousfinds.com, but I'm not sure I've seen many vintage bags on their sites. I don't know for sure that they'd take them. You could email them about the bags, but be prepared to send descriptions and pictures.
I trued fahsionphile, they don't deal with vintage, yoogi's closet the same,
Annsfabulousfinds said they can try selling it on ebay for me.... I'll see now...