I'd be happy with a stop gap option like Tielemans if we then go big on a winger.
Preference:
--------------------------Back 5--------------------------
--------------------------Partey---------------------------
-------Ode (advanced)-------Tielemans (B2B)--------
-------Saka--------------Jesus------------Sane (go big!)
Or:
--------------------------Back 5--------------------------
--------------------------Partey---------------------------
-------Maddison (advanced)-------Ode (B2B)--------
-------Saka-------------Jesus------------Martinelli------
And sign a winger like Gakpo who'd be more of a rotation option/competition for Martinelli vs a marquee signing.
Either way, after this weekend and watching the Spurs game specifically I think we need to add one more goalscorer to our XI. I don't think we have enough goals in our XI to compete with Spurs if I'm being completely honest. Even if we're better than them in all other parts of the pitch we just can't compete with 40/50 goals from just Kane and Son and probably another 10 or so from Kulesevski.
At the moment, I think we have Jesus who is good for 15/20, Saka and one of ESR/Martinelli (depending on who starts more frequently) should be good for 10 or so (that's roughly just 40 from the three biggest attacking threats in our XI) and I don't think that's going to be enough. We need another player who'll be good for 10/15 goals or so - if not I think we will fall short again this season.