A betting audience is easier to find than any other in affiliate marketing: it assembles itself wherever sport is discussed. The question is not where to find them but where to find the ones who will answer.
Five kinds of place
Comments under sports channels. The warmest slice. They wrote something on the subject, so they are open to talking. The downside is that there are several times fewer of them than subscribers.
Supporter chats. Club and league chats. A narrow audience, but alive and talkative — the best source for chat work.
Tipster channels. They already bet, nothing needs explaining. The flip side is that they have seen dozens of pitches.
Esports chats. A younger, more active audience that barely overlaps with classic sport. A separate market inside the market.
Adjacent channels. Fantasy leagues, statistics, transfer news. The interest is there, the readiness to bet may not be — the coldest of the five.
How to filter places
Three signs separate a living venue from a dead one: how recent the last message is, how many of those messages are actually meaningful, and whether comments are open. A channel without a discussion group has nothing to comment on and gets skipped.
How to check a venue before spending an account on it is in spotting fake subscribers.
How many places you need
More than you think. Some fail the check, some turn out dead, some close comments. A working rule is to collect three times what you plan to use. How to build a list that size in one run is in building a list of 1500 channels.
How warm a source is decides not only conversion but which payout model to take. Commenters and club-chat members play longer, so revshare suits them — at 1win Partners it starts at 50%. For the cold venues at the bottom of the list a fixed CPA up to $250 is the safer call: money now beats a percentage of people who will not stay.
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The order of work
Collect and check venues, distribute them across accounts without overlap, then work. Two of your accounts in one chat is the most visible sign of automation, and the moderator spots it before the members do.