Do listen to a few and choose one you feel drawn to.
Namo Amida BuAmitabhaNamo Quan Shi Yin BosatOm Mani Padme Hum HrihOm Ami Dewa Hrih
Some other recordings of liturgy
Prajnaparamita Hridaya Sutra p20 (the text is wrong in places – I learnt this using the resources here & here)The Heart Sutra in JapaneseTai Shih Chih Prayer