If you're looking for channel level advice get the book Traction by Gabriel Weinberg and Justin Mares. Then think who your customers are, what you're good at, h

If you're looking for channel level advice get the book Traction by Gabriel Weinberg and Justin Mares. Then think who your customers are, what you're good at, how much you can afford to acquire them (1/3 of the lifetime value is a good yardstick) then choose a channel that fits those things you've identified the best.