Looking to upgrade my amp but want to make the right choice

Beginner here, installed some "MTX Terminator TNP212D2 Dual 12” Subwoofers" in a kit (I know, they are cheap). The issue is the amp only gives 250 watts and the subs are rated for 400 rms. Can anybody reccomend an amp that isnt going to blow my subs up. I have found a few but just want to see what you guys think