What's your No.1 customer acquisition channel?

I'd be interested to know how businesses acquire their customers, and I'm sure others would to. Answer these - 1. Customer type. B2B, B2C etc 2. Channel. Google Ads, SEO, Influencer marketing etc 3. % of total revenue. e.g 60% 4. The general strategy. e.g we write a piece of content each week targeted at marketing managers. Share your success!