I got one of these.....but, I haven't used it yet. But for $100 what do you want?
Hantek 1008C+ 8CH Automotive Diagnostic PC Oscilloscope 2.4MSa/s USB 2.0 bandwidth 100K Program Generator
https://www.amazon.com/Automotive-Diagnostic-Oscilloscope-bandwidth-Generator/dp/B07DKYR9X6/