Zoho Mail (I found the Mail free plan for you because it's hard to find and it gives 5GB per user with 5 users with a free custom domain email and a free zohomail.com email.)
Tuta (Email service designed for privacy with 1GB of free email storage.)
Proton Mail (Basically Tuta but half the free storage, more expensive, and if the goverment requests info they will give it.)
Temp mail (A free temporary email that expires after a few days.)
Yopmail (Free temp email with many domains to choose from but the emails auto delete after a week and anyone can access the email you made.)
Speed Tests
For internet
Speedtest by Ookla (Most popular and has many servers hosted by ISPs and Hosting Providers.)
OpenSpeedTest (An open-source speed test server you can self-host designed for testing your local network speed but can also be used instead of Ookla and can be embedded in your website.)
Librespeed (You can also self-host Librespeed and it's a good alternative to OpenSpeedTest if you can't use that.)
For websites
Page Speed Test (Owned by Google and shows Performance, Accessibility, SEO, and Best Practices Score.)
Cloudflare (Free SSL certificates when you get Cloudflare DNS or Cloudflare Tunnels.)
VPNs
Proton VPN (Overall best for privacy and customization.)
Cloudflare WARP (Best for speed and simplicity and really only hides your IP.)
TOR Browser (For maximum privacy and is always used for the dark web.)
Git
GitHub (Best overall with unlimited storage for free but owned by Microsoft which is known for telemetry, tracking, spyware, e-waste, and Recall WHICH IS A UNSECURED NONSTOP SCREENSHOTING STORAGE WASTING PEICE OF CRAP.)
GitLab (Best for security but more expensive and less storage unless you self host it.)
Codeberg (Bad web hosting unless it's only for Germany, low repo storage at 750MiB, and you have to request for more resources.)
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent