touter

To solicit customers, votes, or patronage, especially in a brazen way.

To obtain and deal in information on racehorses.

To solicit or importune: street vendors who were touting pedestrians.

Chiefly British To obtain or sell information on (a racehorse or stable) for the guidance of bettors.

To promote or praise energetically; publicize: "For every study touting the benefits of hormone therapy, another warns of the risks" (Yanick Rice Lamb).

Chiefly British One who obtains information on racehorses and their prospects and sells it to bettors.

One who solicits customers brazenly or persistently: "The administration of the nation's literary affairs falls naturally into the hands of touts and thieves" (Lewis H. Lapham).

Chiefly Scots and Irish Slang One who informs against others; an informer.