I have not tried this yet. I am thinking about it.

Create a Mastodon bot to forward Twitter and RSS feeds to your timeline

"A second section where I show with a practical example that leverages Platypush how to set up a bot that brings your favorite Twitter profiles and RSS feeds to your Fediverse timeline, even if they don't have an account there."

https://blog.platypush.tech/article/Create-a-Mastodon-bot-to-forward-Twitter-and-RSS-feeds-to-your-timeline #FediverseBot #RSSFeedReader #Automation #Blogger #Genealogy
Create a Mastodon bot to forward Twitter and RSS feeds to your timeline

The Platypush blog

@HaplogroupNews There's already bots & entire instances that do that. For instance following an account on @birdsite.wilde.cloud mirrors a twitter feed to me as a private feed, so I can keep up with Twitter posts of that account. I believe it's done as private accounts to discourage trying to have conversations with it as it's a bot.