How Do You Find Affordable Book Marketing Services That Actually Work

Hi everyone, I have been looking into affordable book marketing services, but it’s hard to know which ones really make a difference without spending too much. Some authors swear by small social media campaigns, while others focus on email outreach or connecting with reader communities. I am curious what book marketing suggestions have genuinely worked for you on a budget? I would love to hear honest experiences and practical tips that actually helped promote a book.