I think L2 data could be one, but could be a game changer if they could offer for free.
A second could be advanced technicals like https://simplywall.st
I’d like to hope though that the CFD and lending out our shares can continue to subsidise the Invest/ISA
I think the main peeps behind T212 have previously said that the subscription model doesn’t work and are against doing it.
https://community.trading212.com/t/securities-lending/6783/16?u=phildawson