sanskrit words are itself beejamantras

any sanskrit syllable can act as a beej mantra. the association of the diety with the syllable(beej) is in the subtle level. a beej mantra recitation can result in direct effect on the various nadi and hence be careful to practice. hwnce the disciple should be invoked by a saguna mantra like namah shivaya before entering into the realm of niguna mantras

vedic concept of beejamantras

Beej Mantras
Pick a Beej Mantra of your liking or based on thesituation, and recite it as much as you can till theproblem is solved.
Kali: Kreem
For realization for Goddess Kali, health, strength, protection, elimination of enemies, solution of grave problems and all round success. Also creates a strongbase for Kali Mahavidya Sadhana.
Mahalaxmi: Shreem
For realization for Goddess Mahalaxmi, wealth, material gains, success in business or profession, elimination of ailments & worries, protection, gettinga beautiful wife, happy married life and all roundsuccess. Also creates a strong base for other Mahalaxmi Sadhanas.
Shiv: Hroum
For realization for Lord Shiv, protection from deadlydiseases, immortality, moksh and all round success. Also creates a strong base for Mahamrutyunjay Sadhana.
Durga: Doom
(D as in Durga)For realization for Goddess Durga, power, strength,protection, health, wealth, victory, wisdom, knowledge, elimination of enemies & grave problems, happy married life and all round success. Also createsa strong base for other Durga Sadhanas, ShaktiS adhanas and Mahavidya Sadhanas.
Bhuvaneshwari: Hreem
For realization for Goddess Bhuvaneshwari, getting everything including but not limited to Kundalini Jagran. The best and the most powerful. This also the mantra for Bhuvaneshwari Mahavidya Sadhana. Alsocreates a strong base for all sadhanas.
Saraswati: Ayeim
For realization of Goddess Saraswati, knowledge, wisdom, success in exams, pleasure and all round success. Also creates a strong base for other Saraswati sadhanas.
Ganapati: Gam
For realization of Lord Ganapati, knowledge, wisdom, protection, fortune, happiness, health, wealth, elimination of all obstacles and all round success. Also creates a strong base for other Ganapatisadhanas.
Hanuman: Fraum
For realization of Lord Hanuman, unlimited strength,power, protection, wisdom, happiness, elimination ofbad spirits & ghosts, victory over enemies and allround success. Also creates a strong base for otherHanuman sadhanas.
Vishnu: Dam
For realization of Lord Vishnu, wealth, health, protection, happy married life, happiness, victory and all round success. Also creates a strong base for other Vishnu sadhanas.
Bhairav: Bhram
For realization of Lord Bhairav, success in Mahavidya or Shakti sadhanas, strength, protection, victory,health, wealth, happiness, fame, success in courtcases, elimination of enemies, success in Shmashansadhanas and all round success. Also creates a strong base for other Bhairav sadhanas.
Dhoomavati: Dhoom
For realization of Goddess Dhoomavati, quick elimination of all adversaries, strength, fortune, protection, health, wealth and all round success. Alsocreates a strong base for Dhoomavati Mahavidya sadhana.
Bagalamukhi: Hleem
For realization of Goddess Bagalamukhi, quickelimination of all enemies, fierce power, victory, fame, elimination of tantra badha, nullifying maranproyogs of enemies and all round success. Also createsa strong base for Bagalamukhi Mahavidya sadhana.
Tara: Treem
For realization of Goddess Tara, unending monetarygain, unlimited wealth, fortune, fame, happiness, victory and all round success. Also creates a strongbase for Tara Mahavidya sadhana.
Narsimha: Kshraum
For realization of Lord Narsimha, quick victory overenemies, elimination of enemies, fortune and all roundsuccess. Also creates a strong base for other Narsimhasadhanas.
Nikhileshwaranand: Nim
For realization of our Guruji is his Nikhileshwaranand form. Paramhans Swami Nikhileshwaranand is the controller of Siddhashram, a place divine even to gods. He has all the powers, all the siddhis, yet he is very much accessible. All it takes is dedication.There are millions of deities, gods and powers; andnumerous sadhanas for them; but, the secret of aquiring everything in one go is my guruji, Paramhans Swami Nikhileshwaranand Maharaj. Also creates a strong base for all sadhanas.
Kuber: Dhham
For realization of Lord Kuber, massive monetary gain,wealth, fortune and all round success. Also creates astrong base for other Kuber sadhanas.
Akash Tatva: Ham
For activating the Akash Tatva (space element) in us which gets us siddhis and eliminates ailments related to this element. Activation of all elements leads to quicker awakening of Kundalini and enables a sadhak to access all supernatural powers.
Agni Tatva: Ram
For activating the Agni Tatva (fire element) in uswhich gets us siddhis and eliminates ailments relatedto this element. Activation of all elements leads toquicker awakening of Kundalini and enables a sadhak toaccess all supernatural powers.
Vayu Tatva: Yam
For activating the Vayu Tatva (air element) in uswhich gets us siddhis and eliminates ailments relatedto this element. Activation of all elements leads toquicker awakening of Kundalini and enables a sadhak toaccess all supernatural powers.
Prithvi Tatva: Ksham
For activating the Prithvi Tatva (earth element) in uswhich gets us siddhis and eliminates ailments relatedto this element. Activation of all elements leads toquicker awakening of Kundalini and enables a sadhak toaccess all supernatural powers.
Shanti (Peace): Tam
For getting rid of disease, worry, fear and illusions.