best broker for HSI index option?

Does anyone know any good brokerage firm to trade HSI index options in Hong Kong?

I am a resident in Hong Kong so some US firms aren't available to me.

I look for

-low commission
-software such as portfolio expiration P&L charts, greek analysis, etc. (most important)
-user friendly + efficient platforms
-good customer service

I'm currently using Phillip securities, but even the advanced trading platforms aren't that great. I'm paying $50-$80 per HSI contract there, which I think is fair but I'm not sure.

Please excuse me if I posted in the wrong part of the forum or anything because I'm new here.

Thanks a lot.
 
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