Where can you buy Bitcoin ETF?

Excuse me, I'm a bit curious about investing in Bitcoin, but I'm not quite ready to dive into the world of cryptocurrency exchanges. I've heard that there are Bitcoin ETFs that can provide exposure to Bitcoin's performance without having to own the actual coins. Could you please tell me where I can buy a Bitcoin ETF? Are there any specific platforms or brokerages that you recommend for this purpose? Also, what are some of the key factors I should consider before investing in a Bitcoin ETF? Thank you for your help!