If I may jump in and add a bit of advice.
Always check, check, check if the broker you’re looking at is regulated (and where).
Do NOT trust a line on the website that says “We’re regulated by XXX (insert regulator here)”.
Make sure to go to the regulator’s website/register and find that broker there.
Important note! – Double check if the broker is licenced/registered or regulated. There is a difference.
For example: if a broker is regulated by BaFin (Germany), but registered in ACPR (France) and FCA (UK) if you have a problem – you have to contact BaFin, not the licence providers. You can contact them as well, but they will only be able to forward your inquiry to BaFin, instead of handling it themselves.