Find the best move to help White win in this position:
FEN: r2qr1k1/pp3p1B/2p1bb1Q/3n4/3P4/5N1P/PP3PP1/R3R1K1 b - - 6 21
Also, if it were turned into a Lichess puzzle (which it isn't because that's from one of my Blitz games T~T), what rating would it be?