The specific twist lock plug on most 30A generators is a NEMA 5L-30. I use the Camco 55333 adapter on my Yamaha 3K boost which converts it to a 30A RV plug.
I also use a 700W hardwired inverter off 2 x 6V GC batteries for TV, laptop or other small electronics use while not running the genny when off the grid.
You have 3 options - solar, batteries and inverter. Genny, less batteries and smaller inverter. Or just a genny and stock equipment but no 120V unless genny is on.
All have their respective advantages so it's a personal choice. If you need high drawing items like A/C all the time then a genny would be your fastest and cheapest option.
My Yamaha is rated at 58db from 7ft. It is very quiet and even less when in econo mode for it's size. It is heavy though,160-170 with full fuel.
2014 375 BHFS Eagle Premier
2014 Ram 3500 Longhorn DRW CC
6.7 CTD, Aisin, 4.10's