I'm doing a presentation for my class and I chose to do it about Nazi's and their potential involvement in the occult. Is there any credible sources where I can get more information on this subject?
You are in luck; AH features an extensive set of resources on this problem, most of which can be found usefully grouped in our FAQ.
I'd also draw your attention to the most recent discussion of an aspect of the problem here, an extensive thread led by u/commiespaceinvader, which is certainly FAQ-worthy but has not been added to the listing as yet:
Hi - we as mods have approved this thread, because while this is a homework question, it is asking for clarification or resources, rather than the answer itself, which is fine according to our rules. This policy is further explained in this Rules Roundtable thread and this META Thread.
As a result, we'd also like to remind potential answerers to follow our rules on homework - please make sure that your answers focus appropriately on clarifications and detailing the resources that OP could be using.
Additionally, while users may be able to help you out with specifics relating to your question, we also have plenty of information on /r/AskHistorians on how to find and understand good sources in general. For instance, please check out our six-part series, "Finding and Understanding Sources", which has a wealth of information that may be useful for finding and understanding information for your essay.