To donate cryptocurrency, you will first need some crypto currency.

Using a privacy-focused cryptocurrency, such as Monero (XMR) will protect the identity of the donor.

Fiat currency can be transformed to crypto at exchanges such as Kraken and then transferred to a self-custodial wallet like Cake Wallet for holding and subsequent transfer. It would not be wise to donate directly from an exchange.

Monero: 45nvfas5dhoV5Ncr9Rbzsq1XubmtPpL7dUpbz5kQJ5CwFcYGaEjBcuYi2kKSsHBv7u3XiZY5zPaXy9yHUPSj5QLqMVrWPox

Bitcoin: bc1q4hyh2upqck5m49yrjy43t4d9wvfpp079spmt0p

Ethereum: 0x62c2E4050d73E0e51FC787f932Dcfa72F45Eef85

XRP: rHvH8N4CfmiDnmxuDD9EpXeoZaG67Ry6jM

Doge: DA6HBqNZyq3HxFaWi89ipU7HWuM4TVbpkG

Solana: 7JHft5EaUKj2vMaENcUMaHvVpQZ3xz94msvTwz35Zx7H

Tron: TKtryDddKvVTo8onRZSuCdDwJJrwKJkYVb