You can try and apply for a TRV. Chances of approval may be low, but will depend on other aspects of her file (approval of visas for spouses low because assumption that intent is to remain in Canada and not to visit).
Note though that with covid processing times may be long/longer than usual. You may be better off applying for PR as soon as possible (also lengthy process) rather than waiting for her to get TRV.
You can also apply for both at the same time - will not harm the overall file but TRV still not guaranteed. Note, assuming you apply when she is abroad, you must apply outland, and no possibility of work permit until process complete.
Your choice of how to proceed.