Bedtime routines?

C

My daughter is almost 2 and I'm pregnant with our second child. We tried everything we could think of for bedtime routines the first year and the only thing that worked was reading her a book and rocking her in the rocking chair until shes almost asleep, then lying her down. We did attempt the cry it out method a few times and this girl literally kept herself awake for 3+ hours until we rocked with her. Any suggestions what we can introduce now? I'm not sure when the new baby comes if rocking is always going to be an option