The best way or the smartest way would be to figure out the weak points and the strong points for the specific SME first. Although there is no hard and fast rule or formula for this, to launch yourself in the right B2B marketplace, you would need to understand what floats your business's boat.

For SME start-ups, it might be a little harder, but there are still ways to dive into ICP, a niche-driven competitor analysis and market audit. If done right, these techniques can be both low-cost and fast approaches. Usually, what I suggest to most people is to start small- with known customers (customers you know personally) or by choosing High-ROI B2B channels. Furthermore, if you look into the long-term value that the cost is offering, it is highly likely that it will feel like more of an investment. I hope this helps, and please feel free to contact me for folow-up questions.