Sat Nam Wahe Guru Mantra
I used this in a workshop in April 2019 and found this wonderful link to someone actually chanting it.  Another version is on the album called Trinity by Mantra Girl.  To actually work with the mantra you may like to use the fingers to help you concentrate and coordinate movement. Click on the link above for more details.

Mantra for Surya Namaskar   
Click on the title above and use these mantras for any 12 posture sequence…or you could just recite them as part of an Ajapa Japa Meditation. I have used them for a seated sequence I did in the June 2019 masterclass … which is suitable for all of us.  You can find the video on youtube.