Jamie Bradley-Green, Christoph Klarer, Michael Obafemi, Alex Cull, Ben Rowthorn, Siph Mdlalose and Nathan Tella. I had to look it up as it's sounds garbled to me on the video.
Summer 2018 https://southamptonfc.com/news/2016-02-29/valery-signs-first-professional-contract-with-saints
https://southamptonfc.com/news/2017-07-07/video-callum-slattery-three-year-contract-southampton Full interview
https://www.ytfc.net/news/2017/july/olufela-olomola-relishing-more-goals/ Olomola talking about his goal (and it was a good one) and his desire to learn.
Sorry can't link but read an echo story earlier saying our academy contributed the 4th most amount of minutes in the PL last season. Most were United followed by Spurs then City. Must say I was surprised about City. Ajax only foreign club to make top 10 and Liverpool 17th