Solar Generators combine just about all of the electrical functions one can think of into a single box. Battery, inverter, solar charge controller, DC-DC systems, everything. They make for really handy portable or temporary units and are a great starting point for someone that doesn’t know exactly what the future holds.
I personally like and own a Jackery 1500. I’ve built large and small scale systems, and yet this unit is still in my arsenal. Having the ability to quickly grab some power and go wherever I need is great. Also serves wonderfully as an emergency backup. I personally prefer the Jackery because of it’s great built-in handle and it’s the lightest in its class. Jackeries come in various sizes, but I like the 1500 because it can tackle anything with a standard 120v plug.