I just use the basic Pico 2204A 2 channel. I just wanted a really fast voltmeter, which is what a scope is. It also has a signal generator which I have used to test speed sensor wiring by providing an alternative signal to the ECU. I like to use it for CAN testing as well. The Pico software is free and the hardware is about $150. Add things like longer leads, attenuators (because the 2204 has a 20V input max), 100:1 lead (same reason) and amp clamps, my total cost was below $500. There is a YouTuber called Mechanic Mindset, who shows you how to use the 2204 for automotive use. That has been a help, since I didn't want to fry my unit.
At my age, I don't plan on spending any more money for things like this, however I am intrigued by this little scope below. Have not researched it much, but the reviews are pretty good. For $125, I tempted to buy one to try it. With the Pico, setting up with the laptop, hardware and leads can sometimes be a PINA. That is why I always grab my Fluke first. My scope is for those really difficult intermittent problems and it is worth the setup time when it helps you solve those mysteries.
HANMATEK scope