The old “I.Reddit.com” (which was just completely turned off) was very good IMO. Just titles and up/downvote buttons basically. Gear icon to expand for more options per post. My only real gripe was infinite scrolling. I don’t like it in general, but in this case there was also an issue with either the implementation or mobile safari where clicking a link and going back completely borked progress.

"Relay for reddit" offers a good experience: removes header and footer on scrolling, shows a list of post titles with previews, hides all actions behind a finger flick, with less used ones in expandable menus.