I am far from the most knowledgeable person on this board but I use a 7' medium action one piece rod and 8 lb test when i am targeting halibut from the shore.

One piece rods are not as convenient but it's worth it for the action and feel.

I usually use a 7' ultra light action two piece for perch (though i wish it was a one piece) I use the same reel with the 8 lb test but with a 4lb leader.

I hope that helps. Maybe some of the other folks will speak up and give you better info. This board has really slowed down recently.