I love a 30"-32" #2 frame 12. In most cases(regardless of barrel type) you can shoot most target loads without worry. They swing well and hold their own on a sporting clays course.
I did just get a #1 frame 12 and have been shooting these 7/8oz loads from Fiocchi:
https://www.fiocchiusa.com/shotshell...-1278OZ75.html
They are wonderful and I have been able to hit some far targets with those shells. Easy on the gun and shooter. They're wonderful in a #1 frame and maybe be even better in a #2 frame!