10kV high voltage switch using mosfet stack
This is quite difficult to achieve and in some sense still a topic of research, there is not a surefire way to stack MOSFETs in series and assure the voltage will be divided evenly at all times during operation.

You gotta think about it like this, whoever has the highest impedance will have the most voltage, if it is too high it will break and then the next highest impedance will get the highest voltage and they will get damaged in cascade. I won't even start talking about ensuring they all operate synchronously, specially with the commutation speed you are asking for.

Another issue is how you isolate the gate circuit for each, you could use inverters, transformers and DC/DC converters to isolate each gate driver and then use fiber optics or something alike to deliver the trigger to each MOSFET at different voltage levels... each has to  be able to isolate your maximum voltage so you need 10 gate circuits that can isolate 10kV for each MOSFET. You could argue that if you had 10, you could make 10 circuits that can work at floating 1kV... but as I said before it is very hard to guarantee that condition.

also define standard... if it is that voltage and current there are single devices that can handle it.

https://www.wolfspeed.com/downloads/dl/file/id/854/product/0/high_voltage_sic_power_modules_for_10_25_kv_applications.pdf

this is not advertisement for that company, just to show you that those things exist, if that is within your range of standard components I think it is better to go for that.

I think your best bet is a single expensive SiC IGBT/MOSFET(module) to handle this, making a stack requires a lot of knowledge and experimentation to get it to work.

High voltage is highly dangerous... so be careful.