I agree with everyone that Leipzig is the clear favorites there, but there is one more game Bayern vs Koln, which is 100% or so guaranteed, at least lets say 99% guaranteed because in football anything could happen and we have seen even Bayern fail to win, and even losing to a third division team which was a shocker but we do not see teams beating them at bundesliga that easily, so it shows that anything is possible while also the fact that Bayern rarely ever loses ever.
Leverkusen is playing Werder Bremen, which by the looks of it they are doing fine so they may win that one too, doesn't seem like a tough game but I still expect them to have a loss eventually, and we have Dortmund playing Gladbach and Dortmund needs to stop this bad situation. All in all, if we want to make a huge parlay bet, there is nothing stopping us and we could totally do that, there is like at least 4.00+ odds laying there, maybe more if you want to bet more games as well.
Only @4.00 from 4 games? I think it's too risky. There is no doubt for Bayern Munich, but for the other 3 teams I doubt that they will win for sure. Since I believe Bayern Munich will win, I will bet on their match against Koln, and not on the 1X2 type of bet. I would choose -1.5 for Bayern Munich on a handicap bet, it gets @1.66, although these odds are not very good, but also not too bad to get a sure win by 2 goals.
Still, Bayern Munich and Bayer Leverkusen are still certain to win in the next match. I personally don't care about away matches for them, because of course at this moment they are still in a very good trend so the victory can still be obtained by Bayern Munich and Bayer Leverkusen despite playing away. But about Dortmund, although Dortmund will play at home, but I personally doubt it a little but maybe, betting for both teams to score can be a good option too. Also maybe about Leipzig and yes, I also doubt Leipzig to win in the away match against Wolfsburg, because it seems that Wolfsburg is not easy to beat at home at this moment.