The following alternatives would also work with Delta Chat:
- VPN (VPS)
- an overlay network, such as Tor, I2P or Yggdrasil
- a SOCKS5 proxy or ssh tunneling
- an HTTPS proxy
- Shadowsocks
- Psiphon - Wikipedia
- https://en.wikipedia.org/wiki/Lantern_(software)
The following alternatives would also work with Delta Chat: