Tubes and Sweet Beaver type baits
You can T rig the tubes with a skip gap hook and bullet weight or use a tube weight
The sweet beaver I would T-rig and bullet weight or on a jig head
Cast out parallel with the current and just let the current seep your bait down stream. You want enough weight to just "tick" the bottom not enough to stick and not so little that you cannot feel a rock once in a while
Here is a tube (I suggest 3-4" size in Black, green pumpkin, motor oil or roadkill colors for your river)
[youtube]aD23dJ4BcKM[/youtube]
and some more reading on tubes: https://www.probass.net/protips/ScottPeterson/speterson7.php
The sweet beaver looks like this (they have lots of names for this style bait)
https://img.tacklewarehouse.com/new_product/RISB-098-2.jpg
JD Baits (a sponsor here) makes one called the Mudbug that I prefer
https://www.jdbaits.com/products.htm
Of course you cannot go wring with a senko type bait - 4" is perfect for the smallies in the susky