2. Lukas Podolski
The German has largely been used on the left wing but has a lethal strike and when used as a center forward he has shown his worth. Podolski’s is strong in the air, long shots and is quicker than both Bendtner and Giroud on the turn and thus can trouble the opponent’s defense more.
Out of those 10, four are injured. To be honest, Arsenal’s best player to play as a striker is Aaron Ramsey. As you said, he has been prolific this season, so playing him up front is a good option.