My case came with the jagstang new so I have little experience with aftermarket cases.
However it's not very likely that a case that will fit a jaguar/jazzmaster will also fit a stratocaster well due to the very different body shapes. But since I have little experience I could very well be wrong. If you have a local shop that you can actually try them out would be best. Or online shop with good return policy.
There is quite a bit of feedback on these cases at amazon. https://www.amazon.com/Gator-Jazzmaster-Electric-Guitars-GW-JAG/dp/B004PXOB26 Keep in mind the feedback is for all the models they have available and not just the GW-JAG model.
Cheers!