Here's who I can see in the top 14 courtesy of all.rugby:
Stade Francais: Zack Henry, Joe Marchant.
Toulouse: Jack Willis
Racing 92: Junior Kpoku, Henry Arundell
La Rochelle: Jack Nowell
Bordeaux Begles: None
Toulon: Kieran Brookes, Jack Singleton, Dave Ribbans
Pau: Dan Robson, Joe Simmonds
Castres: None (well bar the dead to me Henry Thomas).
Perpignan: Ali Crossdale
Bayonne: None
Clermont: None
Lyon: Joel Kpoku
Montpellier: Harry Williams, Sam Simmonds
Oyonnax: None
In D2:
Harry Glynn, Myles Edwards, Harrison Obatoyinbo, Brett Heron, Pierce Phillips, Beau Farrance, Richard Barrington, Joe Maksymiw, Zak Farrance, Harry Sloan, Henry Purdy, Cam Dodson, Darrell Dyer,
George Worth, William Greatbanks, Alfie Petch, Charlie Matthews, Billy Searle, Jonathan Joseph, Zach Kibirige, Lewis Bean, Karl Wilkins, Toby Salmon & Will Witty.
I doubt that's 100% but gives a flavour. Obviously some big names heading to France next year in Farrell, Manu, Lawes, Sinckler & Ludlam.
The England national team aren't losing out too too badly, nonetheless we'd still be better for having Willis, Arundell and Marchant in the conversation, Farrell would be picked and the likes of Ludlam and Ribbans would at least be keeping other, probably better, players honest. No problem with those past their peak / never good enough / not good enough yet going to France to boost their bank accounts or further their rugby education.