This PDF gives the Information for 1200 different Rumors, Adventure Hooks an Pieces of Gossip so you can drop one right into the action and not have to worry about creating one from scratch. Such Rumors as:
Mamnav the falconer claims to have proof that Xaiv the baker is fighting with Alyron the noble.
Faindra the guard has been saying that Trotro the miller is arranging a meeting near the city wall.
Pak the messenger believes that Flathan the merchant is holding a grudge against Foalix the poet.
Dikor the carter heard that Idudao the shepherd is being tricked by Leanin the moneylender.