There are many EUC based Champion, Expert, Professional programs that will have people that blog or speak on each of these vendors below. Use this list to find a EUC expert for the vendor your working with or may want to learn more about. Many experts will be in many programs at the same time.
Citrix CTPs
https://www.citrix.com/community/ctp/awardees.html
IGEL VIP
https://www.igelcommunity.com/vip-2022
Microsoft MVP - Enterprise Mobility
https://mvp.microsoft.com/en-us/MvpSearch?ex=Enterprise+Mobility&sc=e
Parallels Professional (VIPP) Program
https://www.parallels.com/partners/vipp/
VMware EUC vExperts