I've found a quick way to sign up to a bunch of 3rd party cloud services anonymously(ish) without KYC for those on the start of the journey (like me):

1. Get a Proton email address.

2. Sign up to Github.com with Proton email address (enables registration/sign-in/SSO to several services without KYC.

This let me sign up for Tailscale so I can connect to my node via VPN, anywhere.

3. For services where you need 2FA to register, use SMS4sats to get a mobile number where you can receive text verification codes for a variety of services.

How to get the Sats KYC-free? Use P2P eg Robosats, Peach.

I'm just getting started, but hopefully this helps someone.