Where can I find a compiled list of info/data about the diff platforms for saving my money tgt w its respectuve details such as the lock-in period, interest rate per annum/half year etc?

You can check this article out! Has all the low risk investments in Singapore. Figures are dated but you will generally know what offers higher interest:

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https://blog.seedly.sg/low-risk-investments-sin...

Do you mean for a fixed deposit? If yes, you can refer here https://blog.seedly.sg/best-fixed-deposit-rate-...