There's a great option for small companies that aren't amenable to on-call that is underappreciated. Hire an MSP. There are companies whose entire business mode

There's a great option for small companies that aren't amenable to on-call that is underappreciated. Hire an MSP. There are companies whose entire business model is having a geo distributed team with a stack of automated monitoring and run books for multiple clients. You train them, pay a set fee and never ask anyone on your team to be on call.