Some T-Mobile phones with low prices and good specifications include:
Samsung Galaxy A52:
This phone has a 6.5-inch Super AMOLED display, a Qualcomm Snapdragon 720G processor, and 4GB of RAM. It also has a quad-camera setup with a 64MP main camera, and a 4500mAh battery.
LG K51:
This phone has a 6.5-inch IPS LCD display, a Mediatek Helio P35 processor, and 3GB of RAM. It also has a triple-camera setup with a 13MP main camera, and a 4000mAh battery.
T-Mobile Revvlry:
This phone has a 6.2-inch IPS LCD display, a Qualcomm Snapdragon 632 processor, and 3GB of RAM. It also has a dual-camera setup with a 13MP main camera, and a 3000mAh battery.
Please note that these devices are subjet to change, so the best advice would be to check the website of T-Mobile or other retailers for the latest information.