The Drone I use: https://amzn.to/2LEfVVB
Hopefully, this video will help you to fly your drone legally in Portugal. The process for authorization is pretty straight forward. It is just one of those necessary evils I guess.
If you don’t care about learning about Portuguese drone laws, then skip ahead to 12:55
AAN Website and Form page –
Voa Na Boa – App for drone regulations