Options 1, 2 and 3 are great!
Newton Mota

Mmm I like ads on Instagram. They are equally good to look at. They merge well with the app’s content. Actually that’s the only place I look at ads.

What I meant is to have ads designed to be part of the overall experience/content. Not banners sticking out. Like how an ad in twitter is a promoted tweet. An ad in Instagram is a beautiful pic in the feed. So maybe ads on Medium would be promoted stories.

Btw you are Newton? Do you use Newton Mail? :-)