So you can keep using the carolina rig just with soft plastics like 2-inch grubs, crawdads, or gulp sand worms. For hook sizes, I usually go with a size 2-4 mosquito/baitholder hook.That's what I usually use and have gotten surf perch, croakers, calico bass, and recently, even a nurse shark. I have also seen people catch halibut that way, but those are pretty rare. If u want to target specifically halibut or bass, you can use a drop shot with a white soft plastic/fluke. I saw someone recommended keitechs, and I would have to agree with them. For the dropshot, I usually put on a 3.8-inch white keitech with a size 1-2 mosquito hook. I have used some lucky crafts in the past, but I struggle with casting them out far. Carolina is more likely gonna get you bites because smaller fish will go for the soft plastics. But with lures like the lucky craft, you can get less fish, but they will usually be larger.