This has some interesting names:
https://statsbomb.com/2018/11/scouting-the-efl-championships-breakout-stars/
I'm fully on board the Haidara/Ndombele trains. They would be excellent players in our midfield, and are the right age as well as we need long-term solutions.
As far as strikers go, Son or Lamela have been good when used in place of Kane, either Aubameyang-at-Dortmund-style (Son), or shithousing false 9 (Lamela against Chelsea last year). If we decide that's the path to go down, I think that makes sense. If we're going for a back-up, it'll have to be an aging former star with something left in the tank (hopefully), or a riskier signing of a young prospect. If the latter, Maupay from Brentford would likely be a very smart choice.