What is the best way to advertise?

Question

Android

Hello, I have an application that consists of several fragments on which various sounds are located, the user clicks on them and the sound is played. Can you tell me how best to place ads in such an application and what type is best to use (banners, video ads, pop-up) so that it does not interfere with the operation of the application, because the first time I received a refusal to publish on google play

Answer 1

Banner, of course.