[thoughtcriminal]

If you work really hard on making a quality podcast that gives value to a target audience, I promise you you'll never have to ask for sponsorship. People will knock on your door, money in fist.

At that point, you may even choose not to because your built-up audience will buy from you.

That said, there is no harm in trying. There may be takers. The only problem is that if there are a lot of takers, HN could be overrun with this sort of stuff.

I wish you success!