All of the organisations below help Ukrainian refugees free of charge (pro bono) or at reduced price.
Ukraine
Pravo na zahist (Right to defence)
Аree legal aid on cases concerning internal displacement, border crossing, social benefits, etc. Humanitarian and psychological help to displaced persons and those affected by war.
International:
UA Support
International legal team gives free legal advice.
United for Ukriane
Legal information portal, legal advice in the EU, UK, USA and other countries.
https://www.unitedforukraine.org/en-us/articles/5611052642839
USA:
National Immigration Legal Services
National immigration legal services.
https://www.immigrationadvocates.org/nonprofit/legaldirectory/
US Department of Justice
List of pro bono legal aid providers.
https://www.justice.gov/eoir/list-pro-bono-legal-service-providers
Immi
Free or affordable legal advice for immigrants and people planning immigration.
https://www.immi.org/en/info/FindLegalHelp
LINU
A library of legal information and social benefits for Ukrainian refugees.
https://linforukraine.org/
Ukraine Immigration Task Force
Legal resources on immigration to the USA for Ukrainians.