The prophet pbuh said meaning find the best prospect for sperm.
Marry the one who is of kufw to you and do nikah with them. The Prophet peace be upon him had 11 wives will all be pleased with them. Six of them were from the Prophet’s own tribe. The Prophet. Peace be upon him. Had four daughters and he peace be upon him. Married all of them within his own tribe.
And he peace be upon him. Married Zainab and Fatima to her first cousins and he peace people upon he married Umm Kulthum and Ruqayyah to ‘Uthman Ibn Affan, and Zainab to Abu Al As Ibn Al Rabi’, her first cousin and Fatima to Ali Ibn Abi Talib. Also her first cousin may Allah be pleased with them all.
This shows marrying within your own tribe is preferred and marrying your cousins is preferred.
Islamic Principles Website 