If you know of some boring, obscure market niches that are also likely to be profitable, meaning the cost of customer acquisition is easily less than the profit per customer, and is scalably solved with a software product, please either share with HN readers, or at least offer to sell them to us.
They say ideas are worth nothing, but not to me. If you really have some good ideas (see definition above), I would be interested in buying them at a reasonable price.
Here's one that I have dealt with personally: paying taxes as an American that lives abroad (and wants to use the foreign income exclusion) is a nightmare filled with misinformation and tedium.
I don't know if this is actually a market worth pursuing, but I do know that I paid some company $500 to fill in a form for me and help figure out the process. They probably spent an hour or two on my case.
With the increase of dual citizens, digital nomads, etc. this seems like a growing market to me.
I too used Greenback once. The truth is that if one has a relatively simple situation, e.g. salaried employee, then it is entirely realistic to do this oneself. With more complexity (other types of income like interest, capital gains,...) it can be more time consuming, but still doable.
I am not a professional, so seek and pay for professional advice, if that is what you need. I've been doing my own taxes as an American living abroad for ~a decade. If anyone is in a similar situation and has questions, feel free to pm me. Because financial/tax advice from strangers with no professional credentials on the Internet is always a good idea. :p
They say ideas are worth nothing, but not to me. If you really have some good ideas (see definition above), I would be interested in buying them at a reasonable price.