I do know smoked mullet pales in comparison to smoked salmon.
I didn't know anybody even eat mullet . . .
In seriousness though, down here in SC we usually catch a mix of bass, catfish, perch and assorted bream. Eel, gar, mudfush/bowfin, mullet, and carp are also common but I don't typically keep them.
For storage, for any of the scaled fish I typically will scale, gut, and dehead them ahead of time and then freeze them in a milk jug full of water with the top cut off. I'll do essentially the same with smaller catfish, but if it's a large one I'll go ahead and fillet it ahead of time and freeze it in ziploc bags.
Used to be some good rockfish/stripped bass in the lakes too, but for whatever reason they're completely catch and release right now.
I really do want to give salt-water fishing more of a go though. I've lived about 6 miles from the coast most of my life and though I've done a decent amount of shrimping (just freeze those after deheading too), I've done almost no salt water fishing
.