Drive Kindle Sales for Kids' Books

I have five delightful children’s books already published on Amazon through Kindle Direct Publishing, yet they’re barely being discovered. I’m looking for someone who lives and breathes the KDP dashboard and can turn quiet listings into steady, visible sellers... (Budget: £20 - £250 GBP, Jobs: Content Marketing, Copywriting, Digital Marketing, Internet Marketing, Keyword Research, Product Descriptions, Research, SEO)