The best replacement for jig is fixture.

The best alternatives to jig are rated as following:
★★★★★  fixture
★★★★  reel
★★  gig
★  texas rig
★  saber saw
  punch skirt
  porter cable
  spinnerbait
  drop shot
  harbor freight
  flipping jig
  single jig

Your alternative for jig is not listed? Suggest!
Speaking about jig, one probably shouldn't forget about minnow.

Other search terms related to jig and their ratings are:
★★★★★ minnow
You have in mind a companion for jig and it is not yet here? Propose!



Google Trends

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jig
fixture
reel