You should not choose IELTS or TOEFL first. You should choose the university programme first, because Germany does not use one single English-test rule.
For English-taught programmes, the verified scores are simple: IELTS Academic 6.5 or TOEFL iBT 88 – 90. For German-taught programmes, the verified requirement is TestDaF TDN 4 or DSH DSH-2.
That means the right test depends on the course language, not on the country. If you want the full study plan beyond English tests, fees, visa steps, and work rights, see our Germany country guide.

