Yes, Tianjin also has some sections of the Great Wall, see https://www.travelchinaguide.com/china_great_wall/scene/tianjin/ and find more.

Besides, if you want to visit the walls in Beijing, you can take a train or bus from Tianjin to Beijing and visit the walls, see the Great Wall in Beijing in this page
https://www.travelchinaguide.com/china_great_wall/scene/beijing/