Ask HN: What to Do with a List of UK Fintech Journalists?

My partner has been working for more than 10 years as a PR professional. We now live in London and she has a list of UK's Fintech Journalists. We don't want to sell the list but create a SaaS service using her expertise. The SaaS would help startups to create and send personalised pitches to different journalists among other features like "where you've been featured", "write press releases", "doing follow-ups with journalists"... Would you think is it something useful to be built?