Any recommendation on investing or just saving spare cash to get best returns. Interest rates in Europe bank accounts are too low. Can be short or long term but need a secure option and not crypto. Too volatile.
As broad an index fund as you can find with low fees. I like VTI but there’s an argument for VT as well
EDIT: a few links for more reading. Check the sidebars and pinned posts
https://old.reddit.com/r/Bogleheads/
              
              
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          For long term investment I agree with @garrett.
In case you haven’t seen this article yet:
              
              
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