I'm currently using the HAG Capisco shown above. I'm fidgetty and also have an adjustable desk so this was the perfect match. This was an upgrade. I was thinking of getting a racing seat chair, but after more research, I created a shortlist between this and the Herman Miller SAYL. I used the SAYL at a previous gig--when had offices lol. Great chair.
But I learned about the Capsico from a Youtuber. She mentioned she was fidgetty as well in one of her videos so was loving Capisco. It's definitely weird looking but been loving it.