There is absolutely no doubt in my mind that the Sanskrit language has a lot of potential in the contemporary times from the perspective of making a career or running a business around it. Merely, the provision of translation, if one can provide it, is enough to earn a decent amount of money as there are many people around the world who are willing to pay for such services.
At the same time, more specialized services like teaching is also a lucrative option–I have seen people making many hundreds of thousands by teaching mantras, yoga, rituals, etc.
On my own, I have had a decent success of providing Sanskrit tattoo translation service to a number of people around the world. Sharing a tattoo translation that I did for one of my clients: