I have 50k euros (based in Germany) to invest for the next 20 years for my retirement fund. I am 40 years old without any responsibilitites and want to invest so that i have something when i am 60. I have other stock investments, savings and emergency fund so this money is purely for a long term safe investment for retirement. I have heard a lot about VOO or VTO but i am confused as to which is the right fund. Please see below options available to me and please advise. On a side note I feel this might be the time to move away from US funds and invest in world funds. Totally confused at the momennt and can use wise advice from the oldies here. I hope this is not the wrong sub as I want to take advice on investing in valuable funds and the combined knowledge of this group can help me greatly.
These are the funds I am looking at (all accumulated)
iShares core MSCI world
iShares S&P 500
Vanguard FTSE All World
Vanguard S&P 500
Vanguard FTSE Developed world
Birkshire Hathaway B (although a stock but diverse and larger than some ETFs although only US I think)