Looking at the list of Bundesliga's top scorers, Kane still has 21 goals. He played 21 games plus 6 assists. In second place are Patrick Shick with 15 goals and Marmoush with 15 goals. But with Marmoush's move to Man City, it is certain that his goals will not increase. List of Top Scores until week 23.
1. Harry Kane 21 goals
2. Patrick Shick 15 goals
3. Omar Marmoush 15 goals
4. Kleindienst team 14 goals
5. J. Burkardt 13 goals
It looks like it's going to be difficult to shift Kane, I think he'll be the top scorer again this season.

Source: https://www.bundesliga.com/en/bundesliga/stats/players/goals