Cassius,

My wife has been kind enough to compile a short list of witches who would, in her estimation, make suitable brides for you. You would do very well indeed to spend some time with the options below, for I shall expect a final list of three candidates no later than the eve of Hogwarts' annual ball. Rest assured: given your situation, assumed size of dowry was one of your stepmother's considerations.

You of course know your cousin Gretchen Lestrange, who you shall no doubt have an opportunity to speak with at Easter.

Other candidates presently at Hogwarts include:
— Miss @"Adrienne Selwyn", daughter of Mr. Percival Selwyn. French, but wealthy.
— Miss Venusia Crickerly, daughter of Mr. Thatcher Crickerly
— Miss Lillian Avery, daughter of Mr. Wilbur Avery
— Miss @"Cecilia Bulstrode", daughter of Mr. Myron Bulstrode
— Miss Holly Scrimgeour, daughter of Mr. Hadrian Scrimgeour
You would do well to make inquiries on the above relatively swiftly, as their availability for acquaintance is limited by their schooling.

In addition, your stepmother has identified Miss Araminta Scrimgeour. Though advanced in age, her family is no doubt willing to settle a notable dowry upon her given their circumstances.