Here's the playbook: https://theeconreview.com/2018/10/16/how-soros-broke-the-bri...
Good luck.
But as always this is not investment advice, because I disagree with the premise.
On the other hand, it's easy to bet on hard assets (like real estate) and taking on debt when inflation is so high and rates are so low. It has the added benefit of not being sophisticated, requiring neither a finance nor an accounting degree.
If you think that interest rates are low and housing has a lot of reasons to inflate going forward, then I think we agree you're acting rationally, but that has almost nothing to do with 'currency collapse.'
Soros paired the GBP with USD because the bank of England was having a difficult time defending the pound. The USD was not also at risk. It was completely unrelated to the situation happening in England. But if both the GBP and USD fell, Soros would not have made a profit.
You're right, Soros borrowed pounds and sold them for dollars because he wanted more dollars. If you think CAD and USD are both going to collapse, then maybe think about the joys of your day-to-day life (coffee, heat, clean water) and use that as the other side.
It is very unlikely that USD collapses on a human life-scale without major disruptions in those supply chains.
All I can do is point to the failed mandate.
Literally everyone I know is doing this. Crazy mortgages and all money into inflationary resistant assets. Gold, Crypto, etc.