Here you can find some links to other blogs or online resources that I recommend.
Aruba
https://community.arubanetworks.com/home The Airheads Community! Of course! What else to say ;-)
https://www.flomain.de/ ClearPass and Controller non-daily stuff mostly. Always on point and really helpful!
Wi-Fi / Ekahau
https://semfionetworks.com/blog/ Tips and tricks for using Ekahau and generell Wi-Fi knowledge
Palo Alto
https://www.reddit.com/r/paloaltonetworks/ Some good questions and even greater answers!