I like the pinecil, usb-c powered soldering iron with temperature control. If you are not doing anything intensive any fast smartphone charger will power it.
Yes, and they actually have a working thermostat, so they aren't complete garbage to solder electronics with.
Gas powered soldering irons are great for soldering stuff like copper water pipes. But even soldering through-hole components with them is a pain in the ass due to the temperature instantly evaporating all your flux. Soldering SMD components is near impossible with them