Proven marketing strategist for UK subscription web app

I’m the founder of PrediabetesBasket.com, a UK subscription web app for people who have been told they are prediabetic. It analyses supported online supermarket receipts and order confirmations, providing a Basket Score, personalised educational food feedback, practical swaps and comparisons between shops. The website includes a demonstration video, and users can try their first analysis free. I need an experienced marketing strategist who can assess the business, identify the best way to reach…