me, a licensed freelance tourguide and tourist assistant/translator, so it's of more flexibility, less cost, more budget!
The itinerary and time of start is customizable. Generally, we could cover 5 places and a meal time (optional) within 7 hours (0930AM-1700PM or 1000AM-1730PM, etc).

–Chongqing, Chongching, Chungking/Chongquin 重庆/重慶 (whichever you call it), once part of Szechuan四川Province of Southern China, was separated as the self-governing municipality and the biggest city in China and of the world. It was semi-colonized, and served as the temporary capital of China during the WWII so it preserves a lot of European influences, a fact that is unknown to the international community!
–Explore the inside out of this magic and characteristic city! It has its own dialect, gastronomy(eye-popping xiaomian, savory hotpot), cyberpunk nightview, landscape, climate and residential features. And it has become a hotspot for international tourists thanks to the unique architectures, the viral monorail station Liziba (train into the building) and the jaw-dropping plaza Kuixinglou.
–Inbound tour is facilitated by the visa-free scheme of China and the direct flights from over ten transport hubs in Europe (HU–Hainan Airlines), Japan, Hong Kong and Australia (GS–Tianjin) and intercity bullet train to Chengdu, Xi'an and Zhangjiajie. You could also embark your Three Gorges Cruise trip长江三峡游轮 here.

Welcome to customize the tour. I will take for granted the “itinerary builder” if you don't propose the different version. Roughly 5 stops are to complete for a day tour!

Kuixinglou Building (1-22F difference)
Liziba Monorail Station (train goes through the building)
E'ling park (highest peak on Chongqing urban peninsula)
Ciqikou Old Town (English name Porcelain Harbor) microcosm of Chongqing in terms of residential complex and folk livelihood dated to the medieval period (900-1100AD).
Lunch break
Jiefangbei Square (English name Liberation Monument)
Drop-off guests (pending on time left, may drop you at the last stop)

OR,
Kuixinglou Building (1-22F difference)
Liziba Monorail Station (train goes through the building)
E'Ling Park
Lunch break
Mountainous Alleyways (colonial remains and traditional windy zig-zag steps)
Qixinggang City Walled Gate relic
Raffles City Shopping Mall and then do some souvenir purchases
Drop-off guests (pending on time left, may drop you at the last stop)

FEEL FREE TO SELECT BY YOURSELF.
Be prepared for intense citywalk.

Additional sites and time (overtime pay policy apply if necessary)