earbuds

Hi, I'm currently the owner of a sony wh-1000xm3, a bose soundsport wireless, an audio-Technica ath-m50x and a Sennheiser hd559. An earphone recently caught my eye, the Campfire Audio IO. But I'm not sure if it's really worth it to get it. I don't have any way of hearing the buds without buying...

What kind of source do you use when you choose your headphone? Of couse, one of the sources could be the forum like "WHAT hi-fi", but do you use any other source? Do you take into account the reccomendation from your close ones? Do you use SNS for grasping the current trend (do you think...