If you have some current, which it appears you do, the first thing you need to consider in approaching any structure (such as an eddy) is boat control. You will not be able to present your bait effectively to any eddy (or other river structure) unless you control your boat properly. What this means is that your boat must be moving down stream slower than the current. This give your bait time to get down and stay down in the strike zone for longer periods of time.
"Slipping" a river was advocated extensively, in the upper Mississippi river area, by Dan Gapan. This technique of boat control is effective everywhere there is current - with fish holding in current breaks (eddys, wing dams, bridge pilings, etc.). All this is, is using your main engine to move the boat forward, bow upstream, but just a bit slower than the current flow - slipping it, if you will. If you get the hang of this technique, your catch ratio will increase dramatically on any river system. It has for me, for many years.
When you get the hang of this, it will reveal that smallies, walleye and northern pike, will take just about anything coming down at them close to the bottom, where they feed. Tubes, jigs, soft plastics all work. You'll become proficient at "reading" current in no time. Good Luck!