For searchers with a generalist background, can you kindly share the approach you used to select your industry focus?

I have a generalist background with more than 6years consulting experience. I am struggling to nail down which industries to focus on because I do not have expertise in any specific industry. From an industry type standpoint I am open to service, product, or distribution type businesses.

I would really appreciate if you can share any advice, resources, and materials to serve as a guide while I try to decide where to focus my search.