Curate and Aggregate

Hello everyone! I am brand new and making my first attempt at putting together a website. One of the things I would like to try on part of the front page is a section with local sports news. To do this I want something simple where a particular headline or story is pulled if it contains a certain word or phrase which i determine or change… for example “Buffalo Bills” or “Tacoma Rainiers”. Can anyone tell me what the best free plugin is that can do this? I have seen this feature, but the plugins I have viewed charge.