What is the ruling on traveling to perform the Hajj pilgrimage with the people of the country who are Shia, in order to avoid problems that may arise from this journey?

The Hajj is obligatory if you are able, even if it is with the Shiites, while being wary of their doubts and their false doctrine. If it is possible to advise them and invite them to the doctrine of the Sunnis, then that is obligatory, for Allah, the Almighty, says: (Invite to the way of your Lord with wisdom and good instruction, and argue with them in a way that is best).