The best replacement for flathead is channel catfish.

The best alternatives to flathead are rated as following:
★★★★★  channel catfish
★★★★  ohv
★★★  phillips
★★  blue catfish
★★  overhead valve
★★  knucklehead
★  mudcat
★  overhead valves
★  bluecat
★  samurai
★  panhead
  channel cat
  bullhead
  slotted
  catfish
  slotted screwdriver

Your alternative for flathead is not listed? Suggest!
Speaking about flathead, one probably shouldn't forget about t5.

Other search terms related to flathead and their ratings are:
★★★★★ t5
You have in mind a companion for flathead and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of flathead in all years. Click on graph for more.
flathead
channel catfish
ohv