Congrats for getting back into steelhead fishing, talkes1. It sure is both a fun and healthy lifestyle hobby!
You mentioned wanting advice on tackle; specifically, jigs/spoons/drift-bobbers/etc., and gear such as rods and reels. Guys are already posting about those items so I'd like to add my 2 cents worth of help by suggesting that you use steelhead plugs from appropriate places from the bank and also shallow water stands. MOST IMPORTANT is to be certain the edge of the bank is stable and not slippery, and waded to positions out in the shallow water above the fish holding water involves safe river bottom. AND wear a good PFD life vest with tackle pockets, and use a good wooden wading cane (you can put them into your wading belt while fishing)!
For bank fishing, I like to start with those other items first. It's challenging and fun learning the 'bite feel' and setting the hook at the right moment
such that the fish stays hooked. If the fish are definitely there but lethargic and/or off the bite, then I'll often times follow those things with plugs. From those safe places mentioned above, simply find a good piece of land out-cropping or safely waded to shallow water, both near the upper end to position above good steelhead holding water. If the current is moving at a common winter river level rate you can slowly back the the plug down thru a hole or slot with your reel. If the water is low and clear try hovering the plug in good holding pockets, and occasionally reel back upstream a bit to increase action of the plug when needed near a holding spot. You can also cast from any proper place from the bank, across and downstream, and let the plug swing across the current. Keep the rod tip low, unless the plug starts to dredge the bottom where you likely will need to raise it high momentarity thru a short stretch.
There are too many good plugs and patterns to put here, so I'll start a 'favorite plug' thread (these sites have those valuable posts every winter steelhead season). Good luck out there.
( book info and fish pics )