[flashrom] What alternatives of SPI flash Winbond 25Q32BVSIG is exists?

[CarelessChaser]

Hi guys! I have motherboard Gigabyte GA-970A-UD3 with DualBIOS (two chips  Winbond 25Q32BVSIG).
I want to test coreboot, and I'm looking for alternatives of Winbond 25Q32BVSIG.

Can you help me?

//Also, I'm planning to buy BusPirate. Is this good choice for newbie?