Needs ideas for a tattoo honoring my father who passed away when I was 17 yo

Hi. This will be my first tattoo, i need ideas, concepts, symbols, symbolism for a tattoo honoring my father. He passed away when I was 17 yo, he was a man who loved helping the others and he battled cancer and win but few years later a weird virus ate his brain sending him in a degenerative disease that last 10 years. https://ift.tt/3jw6tQf