ProtonMail is a fine e-mail provider. Their clients are open source, your e-mails are encrypted and they have a free tier which is really usable ! Hosted in Switzerland.
Worth mentioning :
I never give a website my ProtonMail adress I always give them an alias generated with SimpleLogin. The free tier allow you to have 15 aliases for one e-mail adresse and the premium plan is really affordable ! You can activate and deactivate aliases any time so you don't get spams. Open source of course.
Worth mentioning :
addy.io Open source too
Firefox Relay This one is too
If you don't want to use a web client Thunderbird is the go to. The UI is outdated but the app doesn't spy on you.
Mobile client is based on 
K-9 Mail
I don't have good recommendations, Canary Mail looks to be the best but it's closed source !
A free and open source (self-hostable) translation API
Android clients :
LibreTranslator
Translate You
Worth mentioning :
Apertium
Always use strong and unique passwords, how to remember them ? You don't have to, use a password manager ! Also enable TOTP everywhere you can ! Or use a YubiKey if you can afford one.
BitWarden is going under a radical and discreet shift within the company: https://blog.ppb1701.com/the-quiet-renovation-at-bitwarden
A very good easy-to-use and cloud sync and open source password manager on a really nice freemium model. You can self host it if you want !
Worth mentioning:
Proton Pass
KeePassium for Apple devices, sync is paid service
1PasswordWorth mentioning (if you don't need cloud sync or are willing to sync it yourself) :
KeePassXC on Desktop
KeePassDX on Android KeePassium for Apple devices, uses KeePass so you can selfhost your sync
I always go with Aegis. Secure, beautiful, easy-to-use and open source !
BACKUP YOUR SEEDS !!!
You should set a custom DNS, you can do it directly in the settings of Windows, macOS, Linux, Android (9+) and iOS (14+)
I host a PiHole that uses 
Quad9 DNS and block all the ads and trackers that it can.
Worth mentioning:
My DNS of choice ! Privacy focused ;) By default it only blocks malware stuff but they also have an unsecure version without blocking.
If you want to setup a DNS that block ads without running your own 
Pi-hole MullvadDNS has a great free option to use !
Worth mentioning:
DNSCloak is the only app you'll ever need to use a custom DNS for iOS 13 or below or if you want simplicity.
Android let you change your DNS in your network settings since A9 but if you have an older version go with DNSNet !
STOP thinking that a VPN will provide you anonymity, it's a trust transfer from your ISP to your VPN provider!
You might not need a VPN but if you think you do or want one:
If you can't afford a VPN but would need to use a free one use Windscribe, it's limited in many ways but protect your privacy better than all other free VPNs and most popular paid options.
Worth mentioning:
Proton VPN Another great Free VPN that is limited in a different manner
Calyx VPN Privacy Advocate Foundation Server proxy-like VPN
RiseupVPN Privacy Advocate Foundation Server proxy-like VPN
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