Just get Eze.
Nwaneri and Martinelli can play on the right as Saka cover. Eze can play on the left as Martinelli cover, or centrally instead of Odegaard or Rice. I honestly don't see enough minutes for Madueke unless it means no Eze.
With Madueke I feel like we're forcing a player into the team, even if via rotation, with minimal upside. Maybe he accepts a back up role and will come on in the 70th minute to dust tired legs? but isn't that also when we want Saka on to finish games off?