Marathon training

I’m running the NYC marathon this year - I’ve run three half’s and this will be my first full! I’m used to working out every day but I’ve been doing 4 runs a week + 2 strength training sessions (on my own). I really prefer classes and I was wondering for those who have run marathons - what classes you would recommend as cross training? I was thinking about the orange theory strength classes or Bode hot sculpt / Pilates / yoga. Thank you!!!