We use Poly Savi 8245 and 8240 - both work well when combined with the 8x8 work app on a windows 10/11 pc.
We used Polycom W740 headsets for years, but after an update to the 8x8 work app about a year ago which changed the plantronics hub integration it caused them to stop working.
I would recommend the Savi 8240/8245, but whatever you choose I'd recommend a recent model to guarantee compatibility. There is a compatibility list that 8x8 published, but I can't seem to find it now.
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David Forrest
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