Hey,
I am looking to purchase a plow kit for my 2021 cforce 800 Xc.
I do live in Canada.
Can anyone help with any suggestions on the best one for the right price.

Appreciate your help!

You might look around i yard sales or cheapo-nickle adds papers for a used snowplow.  Sometimes dealers have them also.  You can make a snowplow base mount yourself, it is not that hard to do. 

Look on youtube and you will find a dozen folks who have put snowplows on some ATV.  Look for snowplow, CForce, and so on. 

You already have the winch, so Up/Down is a major part needed and simple, you already have one.   

If you go that route, it would probably save you 80%-Or More of the cost of a new one.  If  the plow has a worn bottom blade, simple.  Get a piece of metal from metal shop, drill holes to match, and put a new one on. Use bolts with nyloc (or similar) nuts, easy on/off.  Bottom blades are made to wear and be replaceable. The same goes for the "skid feet".

Look here if you want some example of what to do:
https://cfmoto-forum.com/x6/cforce-600-tour-snowplow-fab-install/
A CForce 800 is very similar to CForce 600, not exact the same, but who cares? Make something that fits.

It is not rocket science.  JMO

YMMV