What cards do y'all use for online shopping in foreign currency such as pound, USD etc. Tried youtrip few days back and it was a smooth transaction, tho nt sure if I'm getting the best rate?

I like https://wise.com/invite/u/jiat269 because for certain currencies that i think is gonna rise, i buy them in advance when low

If your total spend per month exceeds $600, I suggest looking at OCBC Frank Credit Card. It gives 6% rebate for online spend (local or foreign currency) capped at $25 (that's roughly $416 spend) and another 6% for mobile payment, which can be used for dining, groceries, public transport etc. The 6% rebate beats whatever foreign currency charge (usually 3+%), that leaves a net rebate of 2+%.

Another alternative is DBS Live Fresh, similar minimum spend, slightly lower cashback cap for online spend at $20 and slightly lower rebate at 5%, but still beats the foreign currency charge.