To find a tax preparer now that you live overseas, you can use the IRS's searchable directory. The IRS has published a Directory of Federal Tax Return Preparers with Credentials and Select Qualifications, which you can visit to find a tax preparer in your area. This directory lists preparers who have the necessary credentials and qualifications to assist you with your tax obligations.
Sources:
Mission Impossible: Extraterritorial Taxation and the IRS
Publication 54 (2023)
§ 301.7701-15. Tax return preparer.
Publication 519 (2023)
Publication 554 (2022)