After much watching of videos, here is what I have settled on:
3 Kanger Protanks
2 Vision spinners
What would you get in terms of accessories, like chargers?
Chargers usually have USB plugs but you can also get wall adapters (like the ones used for iPads and iPhones and such). I'd get the wall adapter definitely. USB ports are fine if you have a powered one open but I think it's easier to just plug into the power strip. I have the Twist so I don't know the Spinner but I'm sure the vendor you buy from has the chargers. And some folk like to have a cigarette lighter adapter so they can charge in the car (or even use a pass through in the car, especially if you have a long commute, that can save battery power).
An inexpensive pass through like
this one is handy. Stubby little widgets with no battery but can come in handy if you get stuck between charges. Or to use at a desk and conserve battery power. Convenient little things.
(Lot of places have them but I buy from Value Vapor so the website was already bookmarked. Made for an easy example. But, also, VV has some nice prices and ships fast. And I see they have the pass through on sale for $12 now that I already bought one of course!

)
Only thing annoying about them is the cord is a tad short. And it's "retractable". But I took the "retractor" off. Which amounted to removing a screw. No big deal.
Definitely came in handy when I was waiting on a battery to arrive in the mail. Had one arrive DOA and had a few days of limping along on one battery.
Oh, if you do get a battery less pass through (they're cheaper without batteries), I'd get a USB wall adapter to go with it. Same issue. You can use a powered USB port but you may not have one open on the computer. Also, I liked to take the little guy into the living room for watching TV. Had a regular wall outlet really close to where I sit. I could save battery power.
But you have to have a 2 amp wall adapter. Have to watch that too. The ones used for battery chargers don't seem to usually have enough power for a pass through. I just picked up a cheap one off Amazon:
USB Wall Adapter.
(I also found my iPad wall adapter works in a pinch. Not a phone adapter but the bigger one for the Pad)