Funeral and expenses

My daughter passed away on 4/2/21. She recently lost her children's father and their grandfather a few weeks before. Her death has been determined as suicide and we are struggling to come up with the funds to cover all funeral costs and other expenses.  She left behind a 10 year old son and 6 year old daughter. They have been traumatized by these recent losses and as their grandmother, I want to do everything I can to ensure they are taken care of. We are getting a lot if support from close friends and family and there are other resources we are looking into. Any assistance will be greatly appreciated.