Hi {{first_name}},
[[Mutual connection name]] mentioned that [[brand name]] is exploring creator partnerships and suggested I reach out. I run [[your channel name]], which covers [[niche]] for [[number]] [[subscribers/listeners]].
I've worked with [[1-2 relevant brands]] on similar campaigns and think [[brand name]]'s [[product]] would be a natural fit for my audience. Media kit attached.
Would it make sense to connect this week?
[[Your name]]