I had the SB910 and the SB700 both of which had the option to adjust the output. No clue about the others.
My SB910 needed to be sent in for repair. The cost was more than I wanted to pay but got the repair completed anyway. It wound up breaking again outside of the warranty period even though I had only used it for 2 events with a total of approximately 110 flash actuations.
That's what prompted me to switch to using Godox flashes (Westcott also has a good ecosystem). I wound up giving away my SB700 to someone local who uses Nikon.
Godox makes flashes that use their own dedicated rechargeable-but-replaceable battery as well as ones that use AA batteries. I have one of each. Moving forward my preference will be to use flashes that take AA batteries. The Godox flash that uses their own rechargeable battery with the battery swelling. So I had to order a replacement battery. The thing is I hadn't used it much at all and always kept the battery stored in its plastic bag that zip sealed.
As for the Nikon flashes, I'm pretty sure the lower numbered flash units have less power output than the SB700 and the SB910. The SB700 has less power than the SB910, too, in case you aren't aware.