Get any fund that mirrors the S&P500. Vanguard has one that comes recommended from many sources, but for an index fund, there is no active management, so you should generally choose the cheapest one. A website called https://www.personalcapital.com/ is supposedly good to compare funds and is recommended by WallStreetPlayboys. It's US only, so I haven't tried it personally, though.
Losers always whine about their best. Winners go home and fuck the prom queen.