Moving to vienna from canada but unsure how to go about it

I am from canada my wife is from sweden and my mother is from germany i do not need to apply for residentcy. I am a drywall project manager and my german is begginner but i can have basic conversations so i feel i would pick it up quick. Whats the best way for me to get a job in Vienna? From the internet in canada or by showing up on a whim and prayer? I also have two young children so i have to maintain a certain standard i just have never made a big move like this and am a little lost as to what to do and how to go about doing it. Any info would be a big help thanks!