For general bottom fishing, the most practical starting point is a bottom bouncer + bait or spinner rig setup. JB Lures Bottom Bouncers and Eagle Claw Bottom Bouncer are built to keep rigs near bottom while trolling or drifting with less snagging.
If you want a ready-to-fish walleye-style presentation, JB Lures “Hot-Flash” Spin-N-Float 2 Hook Harness adds flash and vibration behind a sinker or bottom bouncer.
For saltwater bottom fishing, R&R Tackle Co. Fish Finder Rigs 24'' is a good all-around bottom/surf option, while R&R Tackle Co. Snapper Rigs 48'' is more specialized for snapper and other bottom species.