Should I look for a co-founder before settling on an idea? (I will not promote)

Hello!

For the past 6 years, I have worked at startups to build MVPs or with companies to bootstrap new projects. I've mostly worked as a contractor on early SaaS platforms in the Healthtech sector. I am currently in the fortunate position where I can afford to take some risk, and I've been wanting to start a startup for a while.

I'm a technical person. I'm experienced with designing, building, and scaling SaaS platforms and making estimates. However, I have little experience with sales, marketing, and operations. I already have some startup ideas, but I'm open to other ideas as well.

1. Statistics show that success is much more likely for co-founders than for solo-founders. Would you recommend that I find a co-founder before settling on an idea?
2. I would prefer to work with someone who has experience with the business-related side. Would you recommend specifically looking for a business co-founder, rather than a technical co-founder? I know some people who I feel would be good candidates (people who I find intelligent and are able to bring up interesting points), but they are very similar to me in skillset (i.e., technical), and not complementary.

I'm based in Europe, if that is relevant. Feel free to share your own experiences as well.

TL;DR:
I'm a technical person looking for someone experienced with the business side of a startup. I'm wondering if that's the right approach, or if I should just settle on an idea already, work it out, and look for a co-founder in parallel.