32M, just starting my investing journey – looking for long-term stock suggestions

Hey everyone, 32M here and pretty new to investing. I can invest around €400 per month and I’m looking for some ideas on stocks to research for the long term. To give a bit of background, investing was never really an option for me before. My father passed away a few years ago, and since then I’ve been supporting my family financially. I had loans to pay off, helped take care of my mother, and supported my younger sibling through university. Because of all that, I never really had money left over to save or invest. Now that the loans are finally paid off and things are a bit more stable, I’ve decided it’s time to start investing and building something for my future. I’ve been doing my own research and learning as much as I can, but one thing I really like about this community is that people often mention companies I’ve never heard of before. Some of them turn out to be really interesting once I start digging into them. So I thought I’d ask: what are some stocks you think are worth looking into for a 10 - 15+ year hold? Not looking for get rich quick plays just companies with strong long-term potential that I can research further. Thanks in advance for any suggestions!