Central mall. Good for typical restaurants and fastfood chain or a milk tea fix. Go down to the basement floors for some local Vietnamese fashion brand (not too excited tho, see my shopping street recommendation for shops)
Please click View to see the full blog post of famous shopping street in Saigon. This city is not known for anything but the local fashion scene. Some brands got as far as being worn by Kpop idols like Black Pink (if that's your cup of tea), and many old apartments offer unique shopping experience (or may I say an adventure in the narrow alleyways) as well as cute coffee shops.