I married a man that is on a F1 visa, he want to change it to i-785 but he needs a sponsor. Is there another way?

If your husband has a willing friend or relative who can be a cosponsor, that would suffice as long as it is a credible offer of sponsorship. Your husband probably knows friends and contacts through his schooling. If he wishes to remain legally past the time of his OPT, he could reregister as a student at his last institution or another one that is willing to accept him. With more time, he may be able to find a job or you may find one also. I also note that the law allows a person who is not in status like your husband to still obtain adjustment of status to permanent residence through a US citizen spouse as long as otherwise qualified. 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.