So you want to make a podcast? XpoNorth did a series of instructional blogs that go through the key skills of recording, editing and distribution. You can access them all here:
Podcast blog 1: Recording – https://xponorth.co.uk/blog/so-you-want-to-make-a-podcast-part-1-recording
Podcast blog 2: Mixing and Post Production – https://xponorth.co.uk/blog/so-you-want-to-make-a-podcast-part-2-mixing-and-post-production
Podcast blog 3: Distribution – https://xponorth.co.uk/blog/so-you-want-to-make-a-podcast-part-3-distribution