Most of your newspapers, magazines, and journals will come from the databases in the various OPACS. I'll add some of the ones students have used before here and give some other suggestions, and I can't wait to see what you discover.
From the NAHS OPAC, you can look on the side navigation bars after you've done a search, and you will see options to limit your search to newspapers, magazines, journals, etc.
In AFPLS' OPAC, you'll be able to do the same; however, they also offer Flipster and RB Digital which are portals for numerous professional and pleasure reading. See Ms. McCall or any of your public librarians if you need assistance with anything available through AFPLS.org. Remember: JSTOR is ONLY available when you are present at an AFPLS location. You cannot access it virtually from home or school.
If you need newspapers from other countries, those are also available. See Ms. McCall or keep watching this page and she'll eventually get it up here. :-) Join the Google Classroom (d4hyyp8) to get more and see Ms. M. in the MC to discuss any other resources you may need.