What different types of immunity exist?

Like tenure, diplomatic immunity, presidential immunity, double jeopardy, plea deals in exchange for testimony, and freedom from charge for politicians in parliament from slander.

(I don’t know what it’s called, but In Canada Members of Parliament are free to accuse other members, to a point.) They cannot call each other liars, but a common threat is for them to (say it out of the house). So some stuff Is protected speech for politicians inside the chambers.