FreshRSS is what I use and I can create my own feeds using X path, it’s kinda great but too much to explain. I wrote a blog about it.

https://joelchrono.xyz/blog/newsboat-queries-and-freshrss-scraping/

I quite like using K-9 Mail, it merged with Thunderbird and great things are coming for it, I think it’s awesome

FreshRSS, news and websites fetched your way. You can even create feeds for websites that don’t provide one