Singlife has stopped new sign-ups since December. So the next best options are Dash EasyEarn & GIGANTIQ. If you're looking to park $10K, GIGANTIQ could be better because it's less restrictive.
You can get started with just $50 vs $2,000 with EasyEarn. Do check out my comparison of both accounts here for more details too!
However, if you think that you may be putting in more than $10K, you may want to go with Dash first since the account limit is $20,000.