For those who want to avoid soldering(unavoidable if chip is bad), SOP8 clips are very cheap on ebay.
There are many alternatives to the STM32 dev board used in the article, common ones are raspberry pi's such as the zero w(what I tend to use, requires some config changes), but also SPI to USB adapters for PC. Always read the flash several times to increase the likelihood you got an error free read, and also read it after writing as well.
Having a working setup able to read and write spi flash is very inexpensive and a handy emergency skill to have.