Deliver
a) Implement: What is the best platform to onboard people?
The correct platform to deliver your solution of course depends on the solution itself. Try to choose platforms that are either already accessible or easy to implement. Remember always it needs to suit the users needs, not your needs. Maybe there’s a cheaper platform but if it becomes a barrier to adoption then it’s not going to be successful.
b) Promote: How to best appeal to people?
Rather than try to condense everything here, there is a separate guide on advertising and promotion which can take you through how to make an impact with your final product or service: