Where can I buy voyages in Sea of Thieves?

Excuse me, could you please enlighten me on where exactly one could procure voyages in the game of Sea of Thieves? I've been eagerly searching for opportunities to embark on thrilling adventures and treasure hunts, but I seem to have hit a bit of a roadblock in terms of locating the right vendors or outlets for such endeavors. Could you perhaps point me in the right direction or offer any insights into the most efficient methods of acquiring voyages within this intriguing maritime realm? I would be incredibly grateful for any assistance or guidance you could provide.