Meta offers a 25% referral link for apps $10 and above (may be restrictions outside of US). Meta-Dog randomizes your links so everyone has an equal chance - use that site instead of posting your individual links.

Steam has a seasonal sale that often features many VR titles, as well as various theme based sales in between. Use the wishlist feature to be notified when your games go on sale.

https://www.humblebundle.com/ - Often has great "pay what you want" sales of up to 80% off. Usually it's PCVR but they do get native Quest titles occasionally.

https://www.viveport.com/ - Subscription based PCVR stating at $9/month. They usually have a great annual black friday deal. Good way to start out and try lots of titles, but new titles are usually quite delayed from the original release.