Coaching Niche on couple relationship

I’m a Tarot Relationship Coach. Basically using Tarot cards to do coaching with my client. My wife is a trained counselor and facilitator. We decided to form a couple’s coaching business. Together we are coaching a young couple that ages around 25 to 40 who just started their family.

Both of us have different ways in terms of coaching. I’m more of the spiritual way of coaching on relationships and she will be the one that uses more logical ways in approaching issues faced by the client. So we recognized that both of us provide a very unique perspective in coaching our client.

But we are not very sure how to market this unique combinations way of coaching and we are not very sure whether our target audience is the correct for us.

How can we know how to market or what niche to do for couple coaches with different capabilities and want to combine it for our clients?