Train enthusiasts, what rolling stock could I come up with for the Trottingham Subway? (Primarily Japanese made trains but European made trains welcome as well)

[CaliforniaSpeedKing 17]

So I kinda wanna know, what metaphorical rolling stock could I use for the Trottingham Metro which opened in 1985? I'd prefer primarily Japanese made trains but European work as well. Trains are also primarily equipped with Japanese made traction drives as well (Choppers, GTO, IGBT and SiC drives). So what could I make and if any trains sound like real world ones, which ones?