Golang is great but depending on the job market in a given country, might be a little bit esoteric.
If you were aiming for one of the more popular options that still scale pretty well, you might pair either PosgreSQL/MariaDB/MySQL with one of the JVM languages (e.g. Java) or one of the CLR languages (e.g. C#). Both runtimes and their languages are okay and have pretty big ecosystems.
Then again, Node or even PHP might be enough for most apps, maybe even Python or Ruby with a bit of vertical (and simple horizontal) scaling down the line.
Just be prepared for that monolith to grow into an eldritch nightmare of dependencies somewhere between 5 to 15 years later. Currently working on such a Java system, it makes the laptop thermal throttle regularly.
If you were aiming for one of the more popular options that still scale pretty well, you might pair either PosgreSQL/MariaDB/MySQL with one of the JVM languages (e.g. Java) or one of the CLR languages (e.g. C#). Both runtimes and their languages are okay and have pretty big ecosystems.
Then again, Node or even PHP might be enough for most apps, maybe even Python or Ruby with a bit of vertical (and simple horizontal) scaling down the line.
Just be prepared for that monolith to grow into an eldritch nightmare of dependencies somewhere between 5 to 15 years later. Currently working on such a Java system, it makes the laptop thermal throttle regularly.