Step 1: Define the Job
A VPN for public Wi-Fi, streaming, travel, and high-risk privacy are not the same purchase. The research repeatedly recommends matching the tool to the threat model rather than assuming one product is best for everyone.
If you mainly want to reduce ISP visibility and protect traffic on public Wi-Fi, a reputable mainstream VPN may be enough. If you face higher-risk situations, a VPN may need to be combined with Tor, secure messaging, device hardening, and safer account practices.