Choice 1: Install a remote glow connector. One end stays attached to your plug, the other mounts further back on fuselage, or wherever you decide to install it.

Choice 2: Several engines have the glow plug pointed back at an angle, which would position your hand further back

Choice 3: Leave everything the way it is and just learn to be careful! This is the preferred method as you will always have need to be near the finger chewing end of your plane from time to time!