New Player Need Guidance

Hello,

I recently started playing zzz 3 days ago. General consensus seems to be that Miyabi is a must pull only for me to find out that her banner just came recently.

Should I just keep playing and save up for her next rerun? use starting characters to get through content? I wonder if Miyabi will be powercrept by her next rerun and no longer strong :(

Are there current characters or upcoming characters that's on par with Miyabi that I can get started on teambuilding?

I am currently interknot level 23 with Anby, Nicole, Billy, Corin, Pulchra, Soukaku, and Koleda.

Thank you guys for your time!