That's what this plugin does. The underlying service, ParkAve, has free options and is used by hundreds of successful news and magazine publishers.

AdRotater Email Ad Reports allow you to send monthly ad reports to advertisers.

Ultra light plugin for Wordpress that add new tiny features to AdRotate/AdRotate Pro (not affiliated)

Easily migrate your adverts and settings to AdRotate Banner Manager or AdRotate Professional with the AdRotate Switch tool.

Easily inject AdSense ADS into your homepage & posts with a LivePreview - 10+ AdSpots, Free Forever, No upsells, AMP Support, Best AdSense Ad Manager

Insert responsive ads easily in posts, pages & widgets. Shortcode support. Seo Optimized. Beautiful. Easy to use. Fully customizable.

A silly lightweight plugin doing nothing useful.