Based on this product's specifications, here are some alternatives and similar models
Heatsink Alphacool NexXxoS XT45 Full Copper X-Flow
Summary description:
The Alphacool NexXxoS XT45 Full Copper X-Flow heatsink features a robust design with brass, copper, and steel materials. Measuring 124 mm in width, 532 mm in depth, and 45 mm in height, it offers excellent thermal performance. Weighing 1.73 kg, this heatsink is ideal for high-performance cooling solutions.