The best replacement for shielding gas is flux core.

The best alternatives to shielding gas are rated as following:
★★★★★  flux core
★  argon

Your alternative for shielding gas is not listed? Suggest!
Speaking about shielding gas, one probably shouldn't forget about flux core.

Other search terms related to shielding gas and their ratings are:
★★★★★ flux core
★★★ flux core wire
You have in mind a companion for shielding gas and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of shielding gas in all years. Click on graph for more.
shielding gas
flux core
argon