This is a great site with graphs updated daily. There must be at least 50 different line graphs, scatter plots, and world maps showing COVID-19 in a variety of ways. And you can download their dataset for free, or embed their charts on your website. Their code is open source and all their charts are free to use.
The main article is here with a link to download their data: https://ourworldindata.org/coronavirus
Their data is on Github here: https://github.com/owid/covid-19-data/tree/master/public/data
