It's completely subjective--you won't know what's right for you until you try it. I love Browns but don't like Reds: even though both are light, Reds are just bland and have light springy linear motion. My vote is for MX Black which has more tactility via a heavier spring (but not that heavy really).
General consensus seems to be to recommend MX Browns to those who come to Cherry MX from Rubber Domes. Browns are light and have a light bump, no click. They are not like rubber domed keyboards, but they are like... a Cherry equivalent. Another close one would be MX Clears (even closer to rubber dome, but still not like it), but Clears are more difficult to find and are also quite stiff.