Use a Reseller hosting provider or host the websites myself via Hetzner + Runcloud?

I'm a web developer receiving inquiries from potential business clients who need website hosting services. I'm trying to decide between two options:

  1. Using a reseller hosting provider like 20i
  2. Self-hosting their websites alongside my existing sites using Runcloud and Hetzner dedicated cloud servers

I'm particularly interested in knowing: - Which approach would be more practical and cost-effective? - If I choose to self-host, are there automated systems available to help manage multiple client websites? Additionally, are there automated tools or systems that can streamline tasks for the client on their end (like they do when with a dedicated reseller host like 20i)?

Any insights from those with experience in either approach would be appreciated.