Workinghard, I have tugs for both of my aircraft - they are both hangared and are never pushed around on grass.
My Mooney Ovation is way too heavy for me to manage alone when more than half full of fuel even on a hard dry surface. I use a Powertow EZ-40 petrol driven single wheel tug. You still have to pull but are somewhat less likely to rupture yourself.
My R44 is also way too heavy for one normal sized person to handle - I have an electric JARA towcart which works a treat.
I prefer electric, your choice depends on the surface you are pulling it over,
SB