Investing €400–500 per month starting now (from Feb 2026). Which option would you choose?

Hi everyone, I plan to start investing €400–500 per month on a long-term basis, starting now and continuing from February 2026 onward. I am still young and want to start as early as possible. My main goal is long-term growth. I understand that higher expected returns usually come with higher volatility, which I am fine with given my time horizon. I have done some basic research but I am unsure which setup makes the most sense in practice. These are the options I am currently considering: 1. 100% Vanguard FTSE All-World 2. 70% MSCI World + 30% MSCI Emerging Markets 3. Vanguard FTSE All-World + S&P 500 4. Vanguard FTSE All-World + Nasdaq 100 For options 3 and 4, I am especially unsure about the percentage split and whether I would just be overweighting the US too much without a real benefit. If you were in my position, which option would you choose and why? If you prefer a combination, what percentage allocation would you recommend? I appreciate any input, especially critical perspectives or things I might be overlooking.