Compared from location, it is closer from Qinhuangdao to Tianjin than to Beijing. But almost the same~ However, Beijing has much more international schools, you could see a brief list at: https://www.travelchinaguide.com/cityguides/beijing/schools.htm

As for the schools in Tianjin, the well-known one is the Tianjin International School. Others have TEDA International School and Tianjin Rego International School.