The King's Gambit remains a rather dangerous opening weapon, even if it doesn't get a lot of use by top players. The following wiki gives an extensive overview, and sometimes it goes fairly deep into the move count with its coverage:
https://en.wikipedia.org/wiki/King%27s_Gambit
Here's a link to a thread about the Bird's Opening (the KG can be reached vis 1.f4 e5 2.e4 from it):
https://www.chesscanada.info/forum/s...dable+armament