Can Qur’baani be made for the deceased as esaale thawaab?

Answer

Yes, it is highly encouraged. Hazrat Ali (Radhiyallahu Anhu) made 2 Qur’baani, one for himself and one on behalf of Nabi (sallallahu alayhi wasallam) as it was bequeathed by Nabi (sallallahu alayhi wasallam) to have a Qur’baani done for him after his demise.