Here are some well-known remedies that help in early marriage or timely marriage

Worship Goddess Lakshmi and recite “Shri Suktam” regularly. 
Consistently seek blessings from elders
Respect and take utmost care of your mother
Offer respect as well as gifts to your sister-in-law (elder brother’s wife)
Recite ‘Argala Stotra” in the Durga Saptashati
Offer bangles and items of cosmetics in a Lakshmi Narayan Temple
Wearing a gemstone of the planet causing affliction may also help