NCBI's GenBank has some and they're trying to get more.
Here's an article about why it's hard. Spoiler alert, it's poverty.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8795520/
Also I suggest checking out GenBank and BLAST, whether you're working in biology or not they're fun to play around with.
I'm not sure it can fit into just one. He needs a two page spread at least.