I would like to start a new journey in the podcasts world, but before: How could I rank my podcast website? Could I post a summary of my audio content? Is there a problem if a blog post talk about different arguments in the same niche? Thanks for your time
Ranking a podcast website shouldn't be different from ranking any other website. Same SEO principles. But don't rely just on SEO. Your content will determine your rankings more than anything else.
Do you think that a sigle blog post that deal with more than 1 arguments can be ranked anyway on Google?
Would you enjoy reading a blog post that deals with several different topics / arguments? I wouldn't. If I am searching for "homeopathic remedies for headaches" I don't expect the subject to be mixed with "how to stop frequent nosebleeds" or other health issues. You get the point. And that should be your goal. Write your articles for people, not search engines.
Have you ever listened to a podcast? Before you even start you should dip into a 25+ podcasts just to see what techniques they're using and what is the "norm". Then you should write your business plan comparing the podcast you have planned to others in the same niche - especially because podcasters interview each other are promote each other. Exactly the same way you would a regular site Absolutely - here's how one podcaster does it: https://www.notaballerina.com/2019/10/special-about-india-episode-155-thoughtful-travel-podcast.html, you should be able to find plenty of other examples. It all depends on the niche and what people are interested in. The example above is about travel and the range of topics is extensive. If you invite feedback from your listeners they'll let you know pretty quickly if you've become too much of a general podcast.
@sarahk Thanks for sharing that link, nice listening. But really, that guy is enjoying the mismanagement, calling it life changing experience! That's funny!