Some more alternatives to common tracker filled stuff:

• Google play store -> F-Droid (specific open scpurce apps)
• Google play store -> Aurora store (gets apps from google)
• YouTube/Soundcloud -> Newpipe (integrated adblock)
• google maps -> OpenStreetsMap (website) or OsmAnd (android)
• amazon -> your local store, pay in cash

More browsers:

• Waterfox (cut down version of Firefox) (Linux, Windows, android)
• duckduckgo (android)

Search engines:

• Startpage
• duckduckgo
• brave

Cheaper alternatives to Proton (if you pay): VPN:

• PrivateInternetAccess
• Hide.me

Mail:

• tuta
• mailinator (for creating temporary spam mails) (free)