How to plan the tour for two day stay at Guangzhou , thank you.

Since you only have two days, I think the first day will be cost on Shamian Island and the Sacred Heart Cathedral nearby. Then you can go to the Shangxiajiu Pedestrain Street to enjoy the local snacks there.
On the second day, you can go to the Chimelong Resort and go to Tianhe City for shopping in the afternoon. But I think the Resort will cost you one day to enjoy and it will be a little rush to go shopping in the afternoon. The routes depends on your real journey then.
For the hotel, it is suggested to stay near Haizhu Plaza where the public transportation is very convenient.