I love the backless option you posted. The only problem is they don’t have a back. But they are great because (at least the ones I have) can adjust from table height to counter height, maybe even bar height depending on the stool. So you can use them for other seating in a pinch. Also they don’t block your beautiful kitchen counters, and are really cool looking IMO. The ones I have were on sale from Target. The seats are super big and comfortable, considering they are wood.

However if you are expecting guests to sit there for long periods of time, you might want backs. I would keep looking for those. Upholstered backs might be better. I don’t think I would enjoy leaning against a wood back. But you really don’t know how comfortable anything is until you try it out in person.

Another advantage of the top pic is that you can put stuff on it temporarily like a table. In fact, you may be able to use it as a table somewhere if you want to replace those barstools later. You can’t do that easily with the upholstered seats and the back. If you are like me, you are putting stuff on any horizontal surface available until you have time to put it away.

If i wanted swivel then I would forgo backs (the backs often hit the countertop edge when the base is swiveled - kids loooove to do this - don't ask how I know lol)

Look for something upholstered with back, no arms or smaller scale arms. b The PB Maison leather swivels and will be more comfortable.

Also check what height chair works for you. I wanted PB counter stools, but they ran at 24" height, which I find too low ( 26" is ideal for us). They don't all come at the same seat height even though they are called counter stools.

I would look for a style that has some substance, given the island’s visual weight. How many do you plan on adding, as that will make a difference and did you want backs? Finally, given the open concept did want them to also work with your other choices?

https://www.wayfair.com/furniture/pdp/corrigan-studio-drees-swivel-counter-bar-stool-cstu2198.html?piid=82748831%2C82962461%2C82748830&utm_source=pinterest&utm_medium=social

https://www.target.com/p/26-lars-counter-height-barstool-amisco/-/A-54388609?epik=dj0yJnU9VjZQamRFM3N5RTBObnpuZWdXbkRfZXZVVi1HVDNSMWImcD0wJm49OEVOV0l2c3J2N0xOdFpkMGZFQTJjQSZ0PUFBQUFBR1ZXT1Nj