Jagdpanzer E-100, Waffenträger E-100, Krupp-Streyr *i think thats it name*, Brumbär or Sturmtiger, E-75 and TS version *adds sideskirts and new turret*, E-50, E-100 but with Maus turret *that was a idea for the e-100*, Grille, Löwe, Tiger I P, Vk 36.01 H, Vk 45.01 *both of these were the prototype leading to the tiger I and II*, 8,8 Cm flak bus
Its alot of tanks to consider and research and make but some of these were just prototypes or planned the Panther II for example really only made it to prototype from what i know same with the e-100 which was being built the hull was partially done.