HI,
SAP HANA is releated to DB, SAP HANA is developed by SAP which is faster compared with other database, SAP BI is good it comprises of BW(Business Warehouse) and its functionality
Since you have done MBA in finance then FICO will be good which is finance and controlliing so based on your interest. If your interest is in database go for SAP HANA otherwise with your specialisation go for SAP FI or FICO