Choose marketing channels for an early-stage business

Help me choose marketing channels for an early-stage business.
Inputs: business; audience; budget.

1. Shortlist channels by customer behavior.
2. compare cost, learning speed and team fit.
3. design small tests with stop and scale rules.

Deliver: Starting point, Channel scorecard, Shortlist, Test plans, Decision rules, What to ignore for now.
Clarify critical gaps, separate facts from assumptions, and do not invent data, citations or completed actions.

My material: [fill in here]

Before you start

Provide business; audience; budget.