Searching for family

Hello everyone, my name is Teagan Emil Krziyzek, I am 19 years old residing in Ontario Canada. In 1953 my grandfathers family came here from East Berlin Germany in search for a better life and over the years completley lost contact with anyone back home. My family on that side comes from a Slavic background mainly Polish with last names I know of being Niluschewski (my great grandmother is Gisela Erika Ilse Niluschewski Krziyzek) and my great grandfathers, Krziyzek, (Emil Johann Krziyzek), his parents being Ignatius Johann Krziyzek and Franciska Slowetzka. His last name which has passed down to myself, having his first name Emil as my middle name as well. I have limited info and documents I can share, some of which being Saschenhausen concentration camp documents for my great great grandfather Artur Niluschewski, including Type written notice of death, camp id, etc. I also have a Nazi court arrest record for my great grandfather, as he was a Polish spy and was discovered as this in '38. My 23andme ancestry report comes up with North Rhine-Westphalia and Bavaria in Germany, and Łódź Voivodeship , Silesian Voivodeship and Masovian Voivodeship in Poland. My grandpa says my great grandfather Emil sent letters back and forth to his brothers until the '60s when they stopped. He says some may have gone to South Africa or Australia. I hope to reconnect if anyone has any common ancestry with me and my family here in Canada. We would all be extremely happy to hear. Hoping the internet can do its thing Thanks everyone.