Like many others, I use a variety of glues depending on whether or not I need more or less time to get things in alignment. The amount of gap that needs to be filled is also considered.
Tenax, Weldon #1, #2, and #3, and Tamyia, dry quickly and bond (weld) very well. Plastistruct and testors liquid glue dry a lot slower and give you more time to make adjustments.
Cyanacrilics (Super glues) come in various thicknesses and can cure almost instantly or very slowly, bond very strongly, and are necessary for resin parts and photo etched metals.
White glues, like Elmers, Micro Scales "Crystal Clear", and Testors are useful for clear parts.
Epoxies are useful for glueing in nose weights, and epoxy like J B Weld can be used to create shapes.
Be careful about buying chemicals like M. E.K. from the drug store, or hardware store. The chemicals can be hazardous to your health, as well as a serious fire hazard.
You can make your own liquid glue with acetone by mixing in plastic sprue. The sprue will disolve in the acetone. The more sprue you mix in, the thicker the "glue" becomes. I do not do this anymore because of the fire hazard and the health hazards.
Once you get used to using liquid glue for general construction you will not want to use tube glue. I have not used tube glue for well over thirty years, and I do not miss it!
Experiment with a few of the glues mentioned by the folk that responded to your question and find out what works best for you. rangerj