Best Custom ROMs for Privacy

GrapheneOS

GrapheneOS is a ROM to make your life easy but with private. You don't need to remove Google if you're using GrapheneOS unlike other ROMs to care about your privacy. It quarantines Google services like a normal app. But when you're using another ROM and install Google services, it will be your system's king. And this is bad.

Biggest downside of it is, it only supports Google Pixel. If you aren't in a country which you can have Pixel, you can't use it.

CalyxOS

It's like a regular ROM but with pre-set things. It already set up MicroG, browser etc. for your privacy and serves it out of the box. It's really useful if you want a stable thing.

Biggest downside of it is, it only supports Pixels, Fairphones etc.

LineageOS

It's AOSP but configured for daily usage. If your system is bad, you want simplicity etc, you should use this.

crDroid

It's LineageOS based but adds dozens of configurations there. It's really useful if you want to configure every pixel on your system.