Thankfully, there are a multitude of organizations bringing aide and solace to the people of Ukraine, (How to Help Ukraine.) To foster hope and strength within the collective consciousness, there are ways bolster your spiritual support  through meditation, prayer and similar practices. Here is a sampling from various traditions:

Christian/Catholic Prayers

An online holistic spirituality gathering

A guided meditation that will also help your mental health

Buddhist Tara Practice

A tiny prayer for Ukraine from Spirituality & Practice