Multiple RSS Feeds in One?

My site – https://www.EtsyNJ.com

What I want to do is have an RSS feed reader on the sidebar, and have multiple RSS feeds from my members Blogs, Etsy shops, etc – each rss feed reading the single newest item from the feed, and showing a total of about maybe 5 posts at once.

I originally wanted this to be on the main blog spot, but I’ve decided to settle upon this being on the sidebar instead.

I’m very new to wordpress, so please be gentile ??

thanks!
Abbie