A great in-depth guide: https://anonymousplanet.org/guide.html#introduction with a Matrix chatroom: https://matrix.to/#/#anonymity:matrix.org

For anonymous accounts, you can use a Whonix Workstation VM on a computer: https://whonix.org This allows you to automatically route all software through Tor without IP leaks. If you run a VPN in Whonix, you will still be fully protected by Tor, but the website will see the VPN's IP address (useful to avoid Tor blocks).

For apps (e.g. Telegram or Signal), you can run Anbox emulator in Whonix Workstation: https://agorism.blog/anarkio/anonymous-telegram-account and use an anonymous SMS verification service like https://smspva.com or https://juicysms.com for Bitcoin/Monero or try a free service such as https://sms24.me or https://onlinesim.ru/en

For email, https://protonmail.com or https://onionmail.org are fine. https://relay.firefox.com is a free email forwarding service and https://rainmail.xyz is good for disposable email addresses.

If a service requires a credit card for subscriptions and doesn't accept Bitcoin, you can use a KYC-free Visa gift card such as https://paywithmoon.com, https://coindebit.io or https://thebitcoincompany.com. Alternatively you could use a Bitcoin-friendly personal shopping service such as https://sovereignstack.tools/rerouter, https://proxysto.re or https://shopinbit.com/concierge-service-ordering-service (Note: Some services may reject prepaid cards such as DigitalOcean or even require government ID KYC such as Contabo. If this happens, look for a KYC-free Bitcoin-friendly service. In this case, 1984.is, Njal.la and Bitlaunch.io are good alternatives.)

Some opsec tips: Only use your Whonix Workstation to login to this anonymous account. Don't login to any real life accounts in the same browser or VM. Don't post photos, locations or voice chat. Don't use KYC services. Mix any earned/donated Bitcoin (via Whirlpool or Monero) before you withdraw it via a KYC-free exchange.

Username tip: You can use a Paynym as a random username and avatar: https://paynym.is For this, you can use Samourai Wallet in Anbox or Sparrow Wallet in Whonix Workstation.

For real life privacy (including accessing jobs, housing, healthcare, mail, sim cards, etc. without government ID), look at agorism: https://anarkio.codeberg.page/agorism and https://agorism.blog/anarkio/crypto-agorism