My most dear one,
Sorry for the long delay. The purpose of practicing Highest Yoga Tantra is to achieve enlightenment as quickly as possible in order to liberate sentient beings from the oceans of samsaric sufferings and bring them to enlightenment in the shortest possible time.
According to my observation the deities you have a connection with are Yamantaka and Heruka. Whichever of those two deities you feel a strong connection with, you can decide on that one.
Please make your life most meaningful with the thought of bodhichitta day and night and in every action you do.
With much love and prayers...