I use a Shimano Thunnus 12000 on an Okuma PCH 8’ heavy rod, it has plenty of line and plenty of back bone to get the yellowtail out of the rocks and away from the seals. Great on smaller grade tuna as well
Best-bang-4-ur-$$$...Daiwa BG...6500 or 8000. These two have the capacity, IMHO, for sufficient 65 or 80 lb braid main to fish 30, 40, 50, and 60 lb top shots.
Your choice to fish the upper or lower end of that top shot spectrum will determine what rod(s) to consider since (when I last shopped) there was no single rod with 25-80 rating to allow fishing 30-60 in the mid-range. Multiple rods may be needed to cover the 30-40, 40-50, and then 50-60 mid-ranges. Can swap the reel and top shots between rods as needed and adjust drag accordingly.
X2 what Amadeus said. The single best value in a simple, high-quality-for-the-dollar combination is the Daiwa BG6500 on their Daiwa rod for only about $150 at Turner's and other stores. Put a backing of several hundred yards of braid and a cast-length topshot of mono and you are good to go on anything SoCal offers except the big Bluefin running now. But schoolie Bluefin of thirty pounds or less are easy prey, as well as anything smaller.
There are better spinning reels (I have a half-dozen) and certainly there are better rods (many) but that factory combo is the Honda Accord of fishing setups. It just flat works with no issues, for many many years.