Am going through this now. Old drains the basket went straight to a 3/4" ID hose barb but could not find an identical to replace it. Found new SS drains at Home Depot that fit but they have a large, male thread bottom.
After much tinkering I found a set up that worked fairly simply. Get the standard kitchen drain PVC connector that screws onto the threads of the drain basket and has a long, straight drain tube. For some strange plumbing
reason the only thing that will fit these drain tubes are lock nut fittings. that slide up the drain tube and connect then to other PVC stuff. I have not been able to find any type of pipe, hose or fitting that will connect exactly to the sink drain basket and go straight to a hose barb.
So I found a drain lock nut fitting that the other end was to a standard PVC pipe size, a female socket to fit a 2" ID pipe. That now allows you to go to any of the standard PVC adapters. My next fitting was a step down adapter, one end male 2" to go into the previous adapter the other end a female pipe thread. Then in a different aisle of the store (I for the life of me don't understand why but all the local stores separate these from the standard PVC fittings) I got a nylon male pipe thread with the hose barb on the other end.
This is the best I could come up with after 4 trips to Lowes and Home Depot and a medium size box full of a very large assortment of various size fittings and adapters in PVC, nylon and brass.
Is this what you were looking for?