I don’t really want to reveal my identity online and I’ve been trying to find how I can do that. It seems like Patreon is the only one that acts as a middleman between you and the donator but it only does monthly subscriptions which I don’t really want to have…
the issue you’ll run into is the rules and regulations on the finance industry. To prevent fraud, terrorism, or crime, there’s know-your-client and anti-money-laundering rules that most financial services follow that require you to identify yourself.
Kofi lets you use a PayPal business account, or Stripe, which you set what is shown on the donors bank statement (so it’d show up as what you set it to, rather than a personal name/email). So that might be an option to protect you from being identified by donors, if that’s your worry.