[jedisct1]

What matters for a startup is time to market.

So, go with a boring technology that the existing team is already familiar with, and that fits your use case.

There's nothing wrong with PHP, Python, Go, JavaScript or Java. Even modern "no code" tools such as Bubble can get a first version done in a minimum amount of time.

[eventhorizonpl]

Time to market is important if you have an idea that replicates existing solutions. Or is easy to replicate by others.