The best replacement for spool gun is push pull.

The best alternatives to spool gun are rated as following:
★★★★★  push pull
★★★★★  tig welder
★★★  tig

Your alternative for spool gun is not listed? Suggest!
Speaking about spool gun, one probably shouldn't forget about aluminum.

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



Google Trends

Scale is based on the average worldwide traffic of spool gun in all years. Click on graph for more.
spool gun
push pull
tig welder