What do you mean by "launch", exactly? The easiest way to see if people find a list of book recommendations useful or not is to just compile it, put it online

What do you mean by "launch", exactly? The easiest way to see if people find a list of book recommendations useful or not is to just compile it, put it online and share it! Better yet, do this several times with different formats or recommendations from different people and your page traffic will let you know what is and isn't valued. Asking in the abstract is very, very difficult to get good intel from. One somewhat related success model is Maria Popova, who has built a massive site called Brain Pickings from reading and writing summaries of books herself. There was no sudden launch to fanfare. She learnt what worked by creating and listening to her audience over time.