Here is one... https://wwwnc.cdc.gov/eid/article/27/4/20-4576_article

This one is great because it really brings to light the issue with deciphering the data...

"Since asymptomatic infections represent a large fraction of the infected population, they contribute substantially to community transmission in the aggregate together with presymptomatic cases, even when they individually transmit at a low per capita rate."

https://www.pnas.org/content/118/9/e2019716118