Mike is a YouTuber located in Bulgaria. He has been a "go to" channel for me for a long time. He has great advice on anything to do with drones and technology.  

Drone Supremacy on YouTube:

https://www.youtube.com/channel/UCfKiUw6p0IXl6tH5fAI_Pxg

Drone Supremacy on Instagram:

https://www.instagram.com/dronesupremacy/?hl=en

Preston on YouTube:

https://www.youtube.com/prestonjensen

Preston Jensen on Instagram:

https://www.instagram.com/prestonajensen/

Jensen Air Website:

https://www.jensenairllc.com/