[SunStar]

Browser: Brave
Search Engine: DuckDuckGo or Bing
Email: Anything besides Google. ProtonMail for privacy or even Outlook.com
VPN: NordVPN or ExpressVPN (especially if you're on Android platform)

[UnwashedPeasant]

I vote for these:

Browser: Brave
Search Engine: DuckDuckGo (default engine for Brave browser)
Email: ProtonMail or Zoho.com
VPN: ExpressVPN

I have not found a great replacement for google maps or google street view.

[Mozilla]

It’s three years and Brave offers a search engine. It started in 2022.
https://search.brave.com/

Until that came out the main DDG alternative was Qwant
https://www.qwant.com/

In the same vein DDG offers a browser now for Mac, Win, IOS and Android
https://duckduckgo.com/app

Mail.com email is also free with 65 GB as it is part of a free cloud storage system including integrated email
https://www.mail.com/

VPN I use IPVanish but DDG has a VPN service
Proton Mail also has a VPN service
https://duckduckgo.com/duckduckgo-help-pages/privacy-pro/
https://protonvpn.com/