I am coming from Lagos, Nigeria and my destination is JIANGSU, CHINA. pls help

If your exact destination city is Suzhou in Jiangsu province, you could take flight to Shanghai first and then take a train or bus there with around 1hr, as there is no airport in Suzhou. From Lagos to Shanghai, you could take the conjoint flights transferring at Doha, Dubai or Paris. For the preferential ticket price, it is better for you to consult some booking agencies in Lagos since the international airfare is cheaper if purchasing at the departure city.