Help for my sisters babies

Where to start.  A beautiful sole taken too soon.  She had an infectious laugh and a bright personality.   What is left now is questions and 2 beautiful babies.  Leo (3) and Peneople (9 months).  She was a single mom that came through great struggles to become the strongest mom the kids could have.  We were all so proud of her and will try to fill her shoes the best we can.  Her kids will now be raised by my dad and step mom that would have it no other way.  We are starting this as a family to help cover costs of her funeral as since she was so young and just starting to become an amazing woman she had no life insurance or anything to cover costs of things.  Who does at that age?  We also would like to help cover some cost of of there new extended family and what's left will go into a savings account for there schooling.   Please help us help them.  This world will never be the same and we miss you more and more each second that pasts but we will stay strong for those babies who are just starting off in this crazy world. I love you so much sister RIP