I think the key part of the thread title is holding, with a maverick like Pogba and a hustler like Herrera the 3rd CM needs to be a calm, positionally disciplined CM to sit behind them and protect the defense.
The other aspect is passing, we need someone that can circulate the ball accurately and consistently, controlling the tempo, people seem to think Jose only likes athletes but if you look at his last 3 teams he's had one proper midfield organizer in all of them.
Weigl - By far the best option, about as close to a Carrick clone as we could get.
Paredes - Hes a bit of an under the radar option as he doesn't start for Roma, but he's silky on the ball, has a great passing range and excellent mobility, he'd need refining defensively though.
Fabinho - Defensively he ticks the boxes for me, he's just not all that great on the ball and I think we'd need to add a playmaker #8 to compliment him and Pogba.
Strootman - Strong, decent passer and soild defensively, but the injury issues would be a big worry when you see what's happened with Gundogan.
Jorginho - He's got the passing range but I'm not sold on him defensively and he's super slow.
William Carvalho - His passing game is expansive but I think he lacks the mobility for the PL.
Danilo Pereira - Very much in the same mold as Fabinho.