Looking for a podcast booker

Hi, I'm looking for a podcast booker, to source English speaking podcasts within digital marketing, SEO and PR industry, to contact them and to get me booked on as a guest. I have a new book to promote as part of it. There will also be the need to contact podcasts in specific sectors that the agency is working in e.g. healthcare, fitness, wellbeing and beauty.

This will be ongoing monthly work. Price per month.

Ideally I'm looking for someone with experience of doing this that can provide examples.