I am thinking that the issue of Bayern Munich looking for striker since Lewandowski left is over blown. Bayern is not as desperate as depicted in the media. Have you thought about how many active goal scorers are in Bayern Munich? Let me try to mention people that are capable getting a goal in their three appearances.
1. Thomas Muller
2. Sadio Mane
3. Lorry Sane
4. Gnabry
5. Moting
6. Davies
7. Musiala
And still counting.
As City showed last season, you can play without a central striker at all and have great results. Given the fact that Bayern plays dominant football, this option is also suitable for them, plus, as you listed, there are already many players in Bavaria who are ready to score goals. By the way, after Lewandowski's performance at the World Cup, I was partially disappointed in him, I think his success largely depended on Bayern and not on himself.