Chronicling America is great, but as you’ve noticed it’s limited to issues that are in the public domain. It’s not just LC, the National Digital Newspaper Program[1] has been funding hundreds of libraries across all 50 USA states to make it possible since the mid-00s.

Australia’s national library offers Trove[2], which has a huge collection of Australian public domain newspapers.

Most of their repository is likely funded by your tax dollars and is there for the public to use.

[1]: https://www.neh.gov/divisions/preservation/national-digital-... [2]:https://trove.nla.gov.au/newspaper/