I know Estrela da Amadora because I personally played against them.
It has a lot of history in the Portuguese Cup as a "giant killer" like we say in Portugal.
But just let me tell you, you have one of the ugliest stadiums I have ever saw
It also is known for being a great feeder club in Portugal.
MU´s Bebé, Valencias Miguel and a lot of historic Portuguese internationals from Sporting and Benfica started in the Estrela´s youth system.
Pretty tough neighbourhood, by the way, lots of warrior spirit players (and no, not joking)