Some further questions matter: What is your nationality and what languages do you speak?
(The schools you mention are in different countries).
Generally speaking the schools you mention have a good employment record. However, when a crisis occurs (see for example spain), then it becomes difficult to find a good job even if you have a decent academic background.
Since I have a German background I am more familiar how things work here so I will comment on the situation in Germany:
- tuition fee reduction scholarships: I think the schools you mention offer different possibilites to reduce their tuition fee - success chances depend on a variety of characteristics
- living expense scholarships: Mostly, these come from government or foundations. If you want more information on the situation in Germany for this, you can conntact me directly via private message
- living expense subsidies: also mostly governmental. Germany has a scheme called Bafög. It is quite complicated to explain, but I guess there are already hundreds of explanations out there.
- loan programmes: Private banks, but also public banks (in Germany KfW Kreditanstalt für Wideraufbau) offers student loans. Disadvantage is that you enter an obligation independetly from your future employment status. However, your obligation is also fixed (and not increasing if your salary is increasing).
- generation contract: a fund is paying your tuition and therefor you agree to pay a certain percentage amount of your salaries to that fund after studying. WHU is known to have this kind of scheme:
https://www.whubraincapital.de/ Main advantage is that there is a threshold of income: if you are below that threshold you have to pay back nothing (also in the case of you finding no job)
In my opinion, if you are quite confident about your employment chances and future salary, you should go with the loan programmes. Especially in the current low-interest rate environment, this could be intersting.
However, if you feel very uncertain about your future employment chances, you should go with something like the generation contract. Basically with this, you transfer your employment risk to the generation contract fund.
If you consider the situation in Germany, you should know that the cost for your master degree (but master degree only, not bachelor degree!) is tax-deductible in the future years (i.e. when you have income). This applies not only to tuition, but also other kind of studies-related expenses. Terms to search for: Verlustvertrag, Abzugsfähigkeit von Kosten für ein Studium.