Which kind of distribution channels should I select for a foreign market?

How much control do you want and what will you be allowed to do in the country. For full control, you need to establish your own subsidiary. However, some countries do not allow majority foreign ownership and you would need to find a local partner.
If you select a local representative or distributor, you will delegate much of the responsibility to them. It is important to select the right ones and activate them. The advantage of selecting a local representative is that they already know the market and have the client networks that will enable you start up quickly.
Your choice of solution depends on the country, your resources and how fast you want to be up and running. If you are not familiar with a country and the ways of doing business, ask someone with experience there for advice.