hlh_shortcuts, the annual Highlander fanfic exchange, has been releasing two stories a day since the winter solstice. With 8 stories revealed as I post this, 9 remain. So far, the shortest is >800 words and the longest <7K words. From the tags, 3 crossovers are upcoming. A trend this year may be appearances by Connor and his associates.
(Releases will pause on December 25 to give readers a chance to catch up. Or to sample Yuletide, perhaps.)