It depends on your aim. You can differentiate between just mor links to your page or target group related links if you also want that people visit your page via these links.
Many newspapers and magazines allow users to register and to participate in conversations, if they offer you a profile in that you can add your link then you can gain valuable visitors when writing about financial topics.
In addition there are plenty blogs and small magazines in the web, where you could ak to hand in an own article. Guests autors are often welcome.
Furthermore you could also ask for link exchange.
Beside content related link building also consider to join some business forums where you have to pay small fees and receive a backlink from your profile.
There you often also can participate in finance discussions and win trust and visitors as well new links if visitors like what you publish.
If you are a good networker, then the friends from your network will create links to your website and then things nearly run automatically.