u/BuMmR

I care deeply about a couple of children who aren't mine biologically, and after discussing it with their parents, I'm interested in setting up a financial account for their future. My goal is to contribute money periodically so that by the time they reach adulthood, they'll have accumulated funds to help with major expenses like a vehicle down payment, home purchase, or education costs – whatever they might need at that stage of life. What type of account would offer the best growth potential or advantages for this purpose? I'd appreciate any recommendations.