What is your suggestion in replacement of logic analyzer to check the I2C protocol?

Since Logic analyser are expensive for early professionals and students. What is your suggestion in replacement of logic analyzer to check the I2C protocol?
@techielew @Umesh Lokhande @Navadeep @abhishek awasthi
Solution
I have this it is low cost and work very good for simple things Just found this amazing item on AliExpress. Check it out!
€3.84 | USB Logic Analyzer 24MHz 8 Channel 24M/seconds Logic Analyzer Debugger For ARM FPGA Logic Analyzer Logic 24M 8CH
https://a.aliexpress.com/_EGGJaaL
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