man i uh only write fiction and thats on ao3 which isnt rlly helpful (ᵕ—ᴗ—) im so sorry! but i used to write for the school magazine, though that's not exactly online but it is a place to publish if you have anything like that? U could see if like ur library has smth like that or if any local magazines take submissions? or see if u could set up ur own website u could publish on? Idk how feasible these are these r jusr what come to mind (^ᴗ^)