This question already has an answer here:
I'm currently using GnuPG (RSA 4096), Encryption-based DLP, SSL, SSL-VPN, Password Manager
and other apps considered insecure by the IBM research team, who favor Lattice encryption over the standard asymmetric method.
What are the options of the community to future-proof our redundant and big data stored
digital assets and communication?
UPDATE: The goal of this question page is to provide practical answers if and when the community will be able to provide them.
As of today I'm not aware of any real-world applications that provide quantum-resilient data protection.