Hey! I think one of the best strategies that has worked for me is using interactive content. Using actually engaging content like quizzes, calculators, polls, surveys, etc. increases customer engagement. I have seen that it has increased customer retention by a manifold and value based incentive has encouraged lead generation, as statistics show. There are a lot of tools available for this kind of content creation. I personally have found Outgrow to be very easy to use and cost efficient. In fact, you can even try their free trial for a while without any kind of commitments or card information.
I hope this helps you and do reach out in case of any other questions!