what is the best option for an LPR to get his spouse from a foreign country

The best way would be for the LPR to become a US citizen and to petition under that category. Failing that, some other options could be through the immigration investor EB-5 program if your spouse has the wherewithal to invest, or he might qualify for a working category with dual intent such as H-1B specialized worker or L-1 intracompany transferee. Also if your spouse is an extraordinary alien in a specific field, he may be able to qualify under an O-1 nonimmigrant visa or EB-1A immigrant visa.Due to the limitations of the Lawyers.com Forums, Alan Lee, Esq.'s (the "Firm") participation in responding to questions posted herein does not constitute legal advice, nor legal representation of the person or entity posting a question. No Attorney/Client relationship is or shall be construed to be created hereby. The information provided herein by the Firm is general, and requires that the poster obtain specific legal advice from an attorney. The poster shall not rely upon the information provided herein as legal advice nor as the basis for making any decisions of legal consequence.