Thermalright Royal Knight 120 SE 6 Heat Pipe Dual Towers 4-Pin CPU Air Cooler $19.85

Thermalright Royal Knight 120 SE CPU Air Cooler, 6 Heat Pipes Dual Towers Cooler with Dual PWM Fans, 1500RPM Speed, Desktop Cooler for Intel 1700/1851/115X/1200, AMD: AM4/AM5 for $19.87. Free shipping for prime members. Looks like this is like a peerless assassin with a shorter 120mm which gives you more room for ram clearance. Should perform about as good.