These lines would be my recommendation. They are also frequently played at the top level so there are a lot of games to study.
Ulvestad variation of the the Two Knights.
I write to get ideas and inspiration for aggressive counter options for:
1. e4 e5 2. Nf3 Nc6 3. Bc4 … aggressive (preferably forced/directional) lines - can be a gambit if there are some
And likewise when playing black against Scotch
1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 … then how to counter it super aggressively?