The only mate in one I can see is Qb3#, because the white bishops are on the bottom right corner defend both of the knights and stop the king's movement to a8, a7, b7, c8, and c7 so right now the king can't move. The black bishop is pinned so it cannot move from its current spot, but the white queen is pinned in a way that allows movement to b3 which mates in one.
If you find mate in 1, you’re a genius 🧠

g1-h2?
hangs the a7 knight
Actually, it doesn't. The a7 knight is still protected by the white queen.
The problem with Bh2 is that it's not mate. Black has Qd6.

White Queen to G2
Queen to F2
After all this time, finally a new type of bad answer. Wow.
Other moves look great but dont mate in 1