The most important thing for good sound is distance between the mic and your mouth - since SnR falls off with the square of distance. Some people use a standalone mic mounted to an arm on the front of their desk, but I find that to be too intrusive and ugly. The ideal setup is a headphone with a boom mic.
A lot of business conference headphones have a boom mic, as well as gaming headphones, but they all cheap out on the actual microphone element. For ideal sound quality you want to get a V-Moda BoomPro (wired, $20) or an Antlion ModMic Wireless ($140). These tack onto your existing headphones with a small magnetic clip (so you can take it off when not in a call). You can look up sound quality comparisons on YouTube, these two devices are far ahead of even the most expensive business/gaming headsets. It makes a vast difference in sound quality.
The ModMic Wireless also works around the "Bluetooth sound quality is shit in headset mode" issue, since your headphones are in output-only (A2DP) mode and the ModMic has its own separate Bluetooth connection for mic-only.
Finally, camera quality and lighting are important too. Here's a good article on lighting: https://languageoflight.blog/2020/10/08/time-zooms-by/. For the camera you can use an actual camera (DSLR/mirrorless, ideally with a fast lens) with an HDMI capture card, there's plenty of info about this available on the internet. An old iPhone can also work quite well afaik? Either way, it'll be much better than a webcam, particularly if your room's lighting conditions aren't ideal.
A lot of business conference headphones have a boom mic, as well as gaming headphones, but they all cheap out on the actual microphone element. For ideal sound quality you want to get a V-Moda BoomPro (wired, $20) or an Antlion ModMic Wireless ($140). These tack onto your existing headphones with a small magnetic clip (so you can take it off when not in a call). You can look up sound quality comparisons on YouTube, these two devices are far ahead of even the most expensive business/gaming headsets. It makes a vast difference in sound quality.
The ModMic Wireless also works around the "Bluetooth sound quality is shit in headset mode" issue, since your headphones are in output-only (A2DP) mode and the ModMic has its own separate Bluetooth connection for mic-only.
Finally, camera quality and lighting are important too. Here's a good article on lighting: https://languageoflight.blog/2020/10/08/time-zooms-by/. For the camera you can use an actual camera (DSLR/mirrorless, ideally with a fast lens) with an HDMI capture card, there's plenty of info about this available on the internet. An old iPhone can also work quite well afaik? Either way, it'll be much better than a webcam, particularly if your room's lighting conditions aren't ideal.