Expenses for loss of son's father

On November 20th, our son Nicklaus unexpectedly lost his father Dave to COVID Pneumonia.   Dave lived in Texas with his mother Mary and has left behind many expenses for Nicklaus to take care of, too many for a young 24 year old to worry about: moving, cremation, flights, hospital bills, gas for the drive back, hotels, loss of work due to grieving, etc.   We are not going to be able to bring Mary back this month, as she is in the hospital herself at the moment and will be going to rehab soon.  So, we will have to take another trip sometime in January (more work time lost and moving expenses).  Please if you can help in anyway it would be greatly appreciated.  Thank you everyone!