After joining Lemmy I have been wishig on a feed of content from self hosted blogs, to display in a feed similar to Lemmy. Where we ca. Subscribe to Themes, hashtags or topics and link to self hosted blog posts or simply self hosted videos, images etc.
I may be rambling or dreaming of something that really wouldn't work but I kind of miss the Instagram kind of feed. Lemmy had effectively replaced Reddit for me but I still lack a more visual social media like IG
I don't know what that means but I imagined an RSS feed with posts from sites that I don't yet know but where the posts get grouped or served in groups or categories that interest me. It doesn't even need to limit to sites or blogs. Could as well just be self hosted images or videos served on an RSS feed, and sorted into some kind of category/group/topic
Every poster can have their own content on their own server or even a webhotel running even WordPress but it gets listed and served on a unified platform like lemmy
Sounds like Mastodon to me. You can even interact with Lemmy through Mastodon. Though I think it works the other way around. At least not at the moment.
Have you checked out Mastodon? Idk if it's exactly what you are looking for since it's more akin to Twitter but it has hashtags that you can pin to keep up on. There's some stuff that's more longform and visual on there too or at least people will link to there stuff if it isn't listed there. Maybe try a couple different apps, I use megalodon, see if does what you need.
But are there public rss feeds with content from blogs or creators that i don't yet know.
I know that i can add a feed to an RSS reader but what I would love, was a public autofed list of content, preferably filtered and sorted in categories and tags