Kindly refer to this link: https://www.sistani.org/english/book/48/2293/
Mas'alah No. 1843. Khums should be divided into two parts. One part is Sehme Sadaat, it should be given to a Sayyid who is poor, or orphan, or who has become stranded without money during his journey. The second part is Sehme Imam (A.S.), and during the present time it should be given to a Mujtahid, who fulfils all conditions, or be spent for such purposes as allowed by that Mujtahid. As an obligatory precaution, that Mujtahid must be Aalam, and well versed in public affairs.
You must have your Marja's permission before you spend the khums money else where.
With thanks and regards,
Ask An Alim Team.