Moving across the country while selling/buying homes

Hello. I am reaching out for any advice you can offer me in regard to selling one home, moving across the country, and buying another home. Selling my current home won’t be an issue as I live in a great neighborhood with great schools. The scary part is not being able to find what I want at my new destination right after I sell. I know there is no cut and dried answer, just asking for advice and some direction. What helped you? Hindered you?