you may use cards that discard/send card from your hand, and use spells/traps that used once or has cost to continue the activation.
Following monsters that may help:
1. Trance archfiend
2. Monsters that has discard to activate their effects
3. Monsters that has "no cards in hand" effect to activate/maximize their effects
4. Monsters that has "no spell and traps on your side of the field" to activate/maximize their effects
Following example of spells & traps that may be used:
mirror wall, divine wrath, rising energy, judgment anubis, half shut, etaqua, enemy controller, typhoon*, riryoku, regretful rebirth, limit pulse, etc (im sure you know more what suit the most for your theban deck).
Its better not to use much equip and continous spells/traps that has no cost to control the activation (such as mirror wall). So you can substitute metalmorph, wonder balloon, etc with anything else.
I will update this post if there's new combo with theban. I kindly thanks anyone who respond to my post, for any combo we could use further.