There certaibly is an audience for such, knowing that podcasts for weird, edgy shits are available to the public lol. Methinks that this is actually a good idea, and instead of listening to some religous bullshit or conspiracies of some sorts, trading strategies and insights about the markets would probably help the average Joe trader create his own ideas and tweak his strategies on trading. This will be beneficial and inspiring, for sure, and a lot of people would gladly listen to the words of financial experts and proven traders.
I do not believe that it is possible to teach a trading strategy in the cryptocurrency market. The price of cryptocurrencies depends on a very large number of factors. The market is very promising so no one will share with you a recipe for earnings. Any market is a cruel thing and survives only the most successful. The rest fill this market with money.