Have to say I really like how well some of Spurs youth players have developed as of late.
Oliver Skipp (20 y/o, central midfielder) is a nailed on starter for Norwich, the leaders of the Championship. Should be involved with Spurs squad next season if you ask me.
Harvey White (19 y/o, central midfielder) is one of the absolute best midfielders in the U23 league, and should also start getting more involved with the first team within a year or two. Got a few minutes in the Europa League against Ludogorets.
As for Troy Parrott (18 y/o, striker) his Millwall career started rough with him getting injured, but he's been getting quite a bit of minutes as of late. Production is lacking so far though.
However, this might be premature, but the two largest talents seem to be Dane Scarlett (16 y/o, striker) and Alfie Devine (16 y/o, central midfielder). Both of them have already proven themselves far above the level of the U18's and started featuring for the U23's. Scarlett even got a few minutes for the first team against Ludogorets and looked incredibly good.
Beyond these players they have some pretty hyped up fullbacks in their academy system in Dermi Lusala (17 y/o, right back) and Dennis Cirkin (18 y/o, left back).
Edit: Found a relevant clip from today's match against Chelsea's u23's.
Scarlett scoring with White assisting (Cech in goal!):