Some good suggestions! Nicolo Barella looks like a good shout although I haven't invested.
I've gone quite heavy on Lautaro Martinez - I know he'll have Lukaku to compete with at Inter but hopefully Icardi will be gone, and with CL football I'd expect Martinez to get game time. He looks like he's gone under the radar a bit in the youth boom, still 21. Messi was raving about him and there were a few rumours of a barca transfer, so he's highly thought of.
Also recently added a few Christian Kouame (Genoa £0.91) and Musa Barrow (Atlanta £0.74) as they're both young and I'm hoping they can kick on this season.
As all the above are non-European I probably won't be holding past March.