Dybala will never be able lead the attack anyway so that is a void that has to filled regardless. The 3 players you mentioned are only likely to be back up or rotation options for a big side.
9 months before the summer Mercato is plenty of time for someone to showcase their talent, so I have no one specific in mind as I’m confident opportunities will present if we search well from now.
Just needs to be a centre forward who can lead the line that we do not need to change formations to accommodate. Luxury number 10’s have less of a role to play in the modern game than they ever have over my lifetime. To accommodate one now, they need to be able to influence the majority of games they play in.