Rarely will any client care about testimonials. They only care about results.

Referrals, do your own.

Here's how...

Join https://Meetup.com networking groups in your local area + attend several each week. Be sure to attend the same Meetup groups at least 10+ times, so people get use to seeing you.

For groups with before meeting introductions, use something like this...

"If your office space is way to high for what you're getting + you can never get anything fixed, find me afterward. Likely I can help you..."

Then sit down.

Then stand 1/2 way up again + say.

"My name's {your first name here}."

Then sit back down.

Note: Keep refining your intro, using the above template, till clients start pouring in.