First off, it may be illegal to view restricted online content or even use a VPN in the country you live in. So check the facts before indulging in either activity. Secondly, even though most people think all VPNs will let them watch streaming content that’s not available in their area, many companies like Netflix and Amazon Prime Video are becoming adept at blocking VPN users from accessing region-locked content.
In the latter case, look up Reddit or other popular forums to see what your choices are before signing up for a service that’ll let you go incognito. Depending on where you’re from, the available servers and the VPN provider, you may or may not be allowed unfettered access to a streaming network’s global library.