I bought the Agilent's dso x 2024a oscilloscope and would need some recommendations for probes. It's a 4 channel/200mHZ model and I do not have any probes for it at the moment. According to Dave's EEVblog #143 review, this scope has originally relased with 4 300mHZ N2863B passive probes.
According to keysight, that probe is now obsolete but some are available on ebay. Would you go with this probe or something else? Not sure for example whether there exist 3rd party probes? Or possibility to use other vendor probes with some bnc adapter?
On scope front panel next to BNC there is specification in form of 1MΩ // 14pF.
OTOH, the probes in their specifications specify "compensation range".
If probe has capacitance of your scope in compensation range", you will be able to compensate probe and be able to use it with your scope. It can be noname, Rigol, Siglent, Testec, Hantek, Owon, no matter.
There will be differences in quality, type and number of accessories of course.
Usually even inexpensive probes will work well enough..