ProtonMail is an end-to-end encrypted email service that uses client-side encryption to protect email content and user data before they are sent to ProtonMail servers. All Proton apps are open source. 500 MB storage is free.
More info: https://protonmail.com
The best alternatives to Google, without any privacy tradeoffs, and still free: Chrome, Search, Mail, Chat, Drive, Docs, Photos, Translate, Keep…