In my situation, it depends on how many same cases I will have.
Did you try use email marketing for this by https://belkins.io/? One more effective lead generation method is to place ads on social media sites such as Facebook. Businesses should carefully research the social media site where they want to place their ad. It should be relevant to the business; it should be designed in a way that allows someone searching for products and services similar to what the business offers, to notice the ad. Ads placed on inappropriate sites could result in poor performance and low web traffic.