New to the forum, new to A2 printing at home - where to start?

Hi everyone, I just registered to use the forum, thanks for letting me join in
I'm a photographer looking to produce prints to hang, sell and exhibit.

I have a good problem- I just acquired a Canon PRO-1000 A2 printer.
A2 paper is not cheap, and I'm looking for advice on what to buy as my 1st couple of packs of A2 photo paper.

For several years, I printed from my home darkroom, up to 20x16" and I've so missed being able to make sizeable prints... until now!

Thanks for sharing ideas...

New to the forum, new to A2 printing at home - where to start?