Creating a Bracket
You can create one yourself or use an online tool (like printyourbrackets.com or freebracketgenerator.com) to create the proper size bracket for your tournament (typically 32 or 64 teams). Download the bracket file and customize – i.e. add tournament logo, sponsors, etc.
Other possibilities – adding in round titles (Quarterfinals, Round of 32 etc.) & adding the round structure (“Best of 3 to 21” or “15, 15, 11”, etc.)