Based on this product's specifications, here are some alternatives and similar models
Thermal paste ARCTIC MX-4 High Performance
Summary description:
The ARCTIC MX-4 is a high-performance thermal paste with a thermal conductivity of 8.5 W/m·K and a density of 2.5 g/cm³. Weighing 4 g, it is designed for efficient heat transfer between CPU/GPU and heatsinks. Its easy application and excellent performance make it a reliable choice for cooling solutions.