These are plugins that help you insert ad code into your content manually. There are plugins that auto-insert ads in your content, but I believe that hand-inserting them gives the cleanest results.
Allows you to place your own ads on a site using a shortcode. Ads can rotate through the same location on your site. Includes analytics capabilities. Great if you’re selling ad space on your website to clients.
Gives you a shortcode to easily insert Google Adsense ads (or any other ad code) anywhere you want in your content.
Reusable Blocks (Gutenberg)
For Gutenberg sites, I just use native Reusable Blocks for my ad inserts. No need for an ad insertion plugin on Gutenberg.
Please leave your questions or comments below! – Brian