I would not do this online and I am surprised that some dioceses treat this as a job or role that is listed in directories.
When trying to find a spiritual director, I mostly pray because it has to be the Lord who shows me the right person. Then I would be especially attentive as to whether I meet anyone with whom conversation about God seems to help or inspire me.
While the spiritual director does not have to be a priest, I always have a spiritual director who is a priest because then I can confess to him, too, which both enables and ensures complete sincerity (not that you would not want to be sincere, but I think we are no strangers to involuntary “glossing over”; and also in spiritual direction you are not obliged to tell everything), and I think it helps a spiritual director if he knows that side (my sins, the things I struggle with), too.
When I am without a spiritual director, I first go to Mass in different churches and listen to priests. You can learn a lot about them from the homily, and a few times I have also been inspired by how a priest celebrated Mass. If I feel an inspiration, I go to confession to the priest and see if the advice he gives me in confession is helpful or whether it is something that touches depths in me (which may be a sign that the Lord sends him to be my spiritual director). Thus, through a process of discernment, I find the right person.
Hope this helps and I hope you find the right spiritual director soon.