Based on this product's specifications, here are some alternatives and similar models
Thermal pad GEMBIRD TG-P-01, 100×100×1 mm, 2 W/m·K, grey
Summary description:
GEMBIRD TG-P-01 is a 100×100×1 mm grey thermal pad with thermal conductivity of 2 W/m·K. Designed to improve heat transfer between electronic components and heatsinks, it works across an operating range of −40 to 250 °C. Lightweight (0.023 kg) and easy to apply, it suits cooling tasks in PCs, power supplies and other electronics.