The best replacement for solder is crimp.

The best alternatives to solder are rated as following:
★★★★★  crimp
★★★★  weld
★★★  braze
★★  brazing
★  solder
★  compression fittings
★  lead solder
★  crimp connectors
★  crimp speaker wire
★  sharkbite
★  shark bite
★  sweat
★  compression fitting
★  flux
★  crimp car stereo
★  jb weld
  glue
  silver solder
  quick connect
  twist wires
  solder paste
  lead free solder
  compression
  crimp car audio
  wire nuts
  plumbing solder
  connector
  sauder
  not to solder
  electrical solder
  compression joints
  braze copper
  electrical tape
  wave solder
  soder
  wire nut
  leaded solder
  crimp anderson plug
  rosin core solder
  crimp resistance
  regular solder
  reflow solder
  lead
  thermal paste
  crimping
  reflow
  sauter

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

Other search terms related to solder and their ratings are:
★★★★★ flux
★★ solder
★★ soldering iron
★ water in pipe
★ soldering gun
★ solder gun
★ tin
★ rosin
★ silver solder
copper
You have in mind a companion for solder and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of solder in all years. Click on graph for more.
solder
crimp
weld