>>51059219Honestly PLA is so different you can pretty much use any Pokemon you like and be fine. There's a great variety available. If anything I encourage using more than just a new team of six. Play around with different 'mons until you find the ones you really enjoy using.
Best tip I can give is to not rush it. Take your time, enjoy the experience. PLA was a genuinely great time for me and revitalized my enjoyment in playing Pokemon.