Bars are notable for staying open late, but I’m not really familiar with alternatives that might operate similarly. I think many cafés (at least around my area) tend to close a few hours earlier by comparison, which would be my go-to for an alternative otherwise, so what other options are there?
Restaurants are also open quite late, but a dinner is more expensive, and they often turn to bars. That said there is a huge variety in bar, not all are either the start the party here before clubs open or drink all night to forget and tons are family friendly places where you can, also get a soft drink and enjoy their terrasse/garden