Propane is used in GBB's and GBBR's. It is not an issue to use it as the propellant.
All of the suggested lubes are safe to use. Many many people have used them with no issues. As you stated, you are new, why bother ask if you're not going to listen to recommendations made?
Why must it be in aerosol form? What exactly are you using it for? For mechboxes, it will be too thin. For GBB/R's it's quite messy to spray when only a drop or two are needed.