[davismwfl]

The honest answer is whatever you are most familiar with. For me, it'd be nodejs with either vue (if it is needed/better) or basic server side rendering for a quick prototype. DB would either be mongodb (because it is quick and easy software wise) or Postgres depending on the dataset. I like server side rendering for small prototypes because it takes very little extra work, packaging and deployment steps and can easily migrate to client side later if need be, especially in vue. I know this isn't a popular opinion but it works for me.

For other people it'd be more likely LAMP stack, others still .NET.

The fastest thing is what you are familiar with not what is trendy or new.

I'd also probably use managed services for DB etc versus running my own for a small prototype just because most of the time you can fit in the free tier and not worry about managing db's etc at first.

Firebase would also be worth a good look for quick prototypes but I wouldn't stay there long term most likely.