@Mopsi Gemini mostly consists of lots of gemlogs (Gemini blogs), which you can discover through the public aggregators: [Antenna](gemini://warmedal.se/~antenna/), [calcuode's gmisub](gemini://calcuode.com/gmisub-aggregate.gmi), and my own [comitium](gemini://nytpu.com/feed.gmi).
For more variety other than gemlogs, there's [Medusae.space](gemini://medusae.space/) for discovering various capsules (“capsule” is a kitchy name for a Gemini site). People occasionally post new/interesting projects to #gemini in tilde.chat and libera.chat and to the Gemini mailing list as well.
Once you find a few capsules then it's mostly just a matter of surfing for a while and you'll gradually stumble across lots of interesting capsules!
@jaj@adz@solene For what it's worth, some clients (namely, Lagrange) supports inline images upon click. It's a good compromise between the convenience of inline images without having the extra network request of page bloat.