A lobbyist working for Amazon registered for Georgia’s ethics commission, sparking rumors that the e-commerce giant is eyeing Atlanta for its much-hyped “HQ2.” The company responded Tuesday saying Jacob Oster’s presence isn’t related to the search for Amazon’s second headquarters — although Atlanta is an odds-on favorite in the race. 238 cities and regions submitted bids to win the $5 billion HQ2, which promises to bring thousands of high-paying jobs to the chosen location.