Big Sur for Asus Tuf Gaming Z590-Plus WiFi

Hello,
Can anyone help me for building Big Sur Installer?

My Hardwares:
Motherboard- Asus Tuf Gaming Z590-Plus WiFi
Processor- i5 10400F
Graphics Card- MSI RX580 8GB
RAM- HyperX Fury 8GB 3200MHz DDR4 (x2)
SSD- WD Green SSD 128GB & SemsoTech M.2 NVMe 256GB