This list of studies by Greenmedinfo.com contains Roundup studies grouped by disease. You can also search on diseases to narrow your results. This database seems to link to the free NIH database of studies which often has the full studies to read for free. But you can sign up at the NIH if you want to bookmark studies via their site.
Some of the disease groups are: glyphosate toxicity, lymphoma, DNA damage, low testosterone, skin cancer, neurotoxicity.
The studies are also grouped by adverse reaction.
This looks interesting.