There are also nice tools like this: https://github.com/westnordost/StreetComplete https://github.com/westnordost/StreetComplete It's quite easy to use and if

There are also nice tools like this: https://github.com/westnordost/StreetComplete https://github.com/westnordost/StreetComplete It's quite easy to use and if you don't plan to draw new roads this is the fastest way to fill gaps wherever you are. The more advanced app would be this: https://wiki.openstreetmap.org/wiki/Vespucci https://wiki.openstreetmap.org/wiki/Vespucci Though I don't have experience with it.