I am a fresh grad with around $5k in savings. Where can I start to invest? Should I go for roboadvisors like Syfe or RSP or Vickers?

I'd suggest you start off with DCA monthly into some robos, Stashaway for global exposure and income growth, or Syfe 100%Reit for dividend gains. But do take not that commission for Stashaway is 0.8% and Syfe is 0.65%, based on your $5k.

Firstly, $5k is not a lot of money and might not be worth doing a lump sum investment, esp into US big tech stocks. For eg, an amazon stock price is currently valued at US$2528 which means with your $5k, u can only buy 2 shares at most. So to save on currency conversion fees, platform fees and dividend withholding, i'll say the best for u is to start off with local stocks.

You can create a CDP account and use DBS Vickers as your brokerage. It has the lowest commission fee (but only for buying) of $10 and your stocks go directly into your CDP. You can sell your stocks by linking your CDP to FSMOne. Selling fee is $10 too.

Go to libbyapp.com and login via your NLB account, and go borrow as many personal finance / value investing books. Borrow books that are written from a practictioner perspective. Can start with beginer friendly:

The Five Rules for Successful Stock Investing by Pat Dorsey

The Ultimate Dividend Playbook: Income, Insight, and Independence for Today's Investor, Josh Peters

If books are not your cup of tea, there are a couple good US financial youtubers to follow

Graham Stephan: https://www.youtube.com/channel/UCV6KDgJskWaEck...

PPCIAN: https://www.youtube.com/channel/UCXtrYuGksGkkyl...