Angela Merkel's conservatives have seen their worst election performance since World War Two.
The Green Party, which has come in third place with about 15% support, has signaled they're willing to form a government with the Social Democrats.
The Free Democrats (FDP) secured 11.5% of the vote while the AfD got 10.3% and the Left Party 4.9% in the elections.
Olaf Scholz, the Social Democrats’ chancellor candidate, will likely seek a three-way alliance with the Greens and the Free Democrats (FDP).
Olaf Scholz has been serving as Vice-Chancellor of Germany and Federal Minister of Finance since 14 March 2018. He previously served as First Mayor of Hamburg from 2011 to 2018 and was Deputy Leader of the Social Democratic Party (SPD) from 2009 to 2019.