i would like to view my subscription to Apple TV

it is unclear what you ask, if you mean appletv+ subscription then that is only apple produces material

if you want to know more https://www.apple.com/apple-tv-plus/

if you mean how to see what subscriptions are added to your appleID then read

How to cancel a subscription from Apple - Apple Support

Netflix is a subscriptions that is not dependent on an Apple TV+ subscription. I don’t think it is possible to pay this subscription fee through Apple (anymore). Instead pay to Netflix directly.

Plans and pricing - Netflix Help Center

How do I sign up for Netflix? - Netflix Help Center

Pluto TV seems to be free TV. Just download the app, register, and enjoy.

You may find both their apps in the on-device App Store.