Ideally yeah we would get someone like Wharton, can have a midfield 3 of Wharton, Ugarte and Mainoo long term, or partner just 2 of the 3. But we have tons of work to do just to catch up, especially with us being in the Europa league that sometimes you gotta make some tradeoffs. Amrabat would be solid business, pretty uninspiring, but would give us solid depth for next season and address a hole while let us focus our limited funds on the positions we need.
I'd be surprised if there's much we can do in terms of transfers after De Ligt, Zirkzee and Ugarte. The rest is probably just cheaper options like Amrabat, someone like Chalobah as CB depth, and then a squad player left back like I saw links with Reguillon.