Marketing in live comedy is a long game for comedians. One flyering campaign or one big poster does not make a career. Sometimes, it doesn't even make a gig.
It's better to think of marketing in terms of a "drip-drip" approach in which you repeat your message ("I exist and I am funny!") again and again in small, achievable units. It's cheaper this way, easier for a one-person operation to handle, and far more effective than big gestures with short-term gains in mind. You allow your "drips" to build up long-term into a flood.
Here are some ideas for long-game...
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