Which clients should I be contacting?

Commercial clients are generally better for long-term stability.

They give you recurring work and more predictable revenue once you're established. The downside is they take longer to land and are usually more price-sensitive.

Residential work is typically easier to get started with and clients often pay faster, but the volume can be inconsistent.

Most successful companies I know do a mix of both. They use residential work to pay the bills while they work on landing steady commercial accounts.

What type of service are you offering? That makes a big difference in which side is better for you.