So reddit is turning RSS off on Nov 13..

If you follow subs in a reader: most big subs have a lemmy community with the same name, and every lemmy community has its own public feed, no account needed. The format is https://lemmy.world/feeds/c/selfhosted.xml?sort=New (swap in the community name, and the server after the @ if it isn't lemmy.world).

I built a small finder so you don't have to hunt them one by one: type a sub, it shows the matching lemmy communities, subscriber counts, whether they're actually active, and the feed link to paste into your reader. Free, no account: https://muuted.com/reddit-rss-ending/ . If a sub has no lemmy version it says so instead of guessing.