Considering the 'small' team we are, we have look at height besides age and obviously quality. I consider anyone we buy to be a long term solution and partner to Laporte, to rotate with Stones and perhaps Garcia. Considering Laporte is left footed, we need a right footed CB and for me there are only three considerable alternatives today:
1st choice: Raphael Varane (191 cm, 26 yo, right footed). Would never leave Madrid but one can dream. Would be an amazing partner to Laporte.
2nd choice: Milan Skriniar (187 cm, 24 yo, right footed). Strong, decisive, aggressive, seem like a leader.
3rd alternative: Ruben Dias (186 cm 22 yo, right footed). Strong, aggressive, talented.
Wouldn't be surprised if we went for Skriniar this January, but he wouldn't be able to play in the Champions League, right? Considering Inter is in the CL.