Dear Ma'am/Sir,
I would be able to help you in setting up your Blogger blog to automatically post the latest article from other sites.
If you can provide access to the Blogger on which you want this functionality as well as the list of sites from which you want to pick the latest articles, I can get started immediately.
Before starting, I would like you to know that there is a hard limit implemented by Blogger platform on the number of articles that can be posted in a single day on a blog. They don't allow posting more than 50 article per day per blog and this limit cannot be changed easily. Therefore, we need to be careful that the articles syndicated from other sources should not exceed this limit.
Kind Regards,
Prayag Verma