POSB SAYE Account is reaching 24 months, where should i park my savings after that?

Dbs multiplier definitely, has better interest as long as you credit your salary in & use dbs cards.

I'd say CIMB fast savers but I read other comments which said Citi Maxigain:O is there a difference in both other than ror?

Can also consider putting it in SSB as it gives higher interest than CIMB Fast Saver (of 1%) and it has the flexibility to withdrawl early at a penalty of $2.

Seedly got this covered. Check out this awesome calculator: https://seedly.sg/tools/savings-account-calculator

You put in information such as your monthly income, expenses, loans, etc, and the calculator will let you know which savings account is best for you :)