how many starting watts are you looking for?
the more watts, the heavier the unit to lug around.
a good one with a 500 watt inverter is about 20#
Amazon $149-1400 watts w/500 watt Inverter
personally, I opted for a good quality 120 volt tire air compressor,
I plug an extension cord into any outlet that's controlled by my inverter and I can check tire pressure even when not plugged into shore power.
it's light-weight, in-expensive and works for the purpose intended.
IMHO...I just don't see a need to carry a heavy "jump starter" when I have 2 house + 1 chassis battery.
Please let us know what you decide.