There is one thing that would probably help an unemployed priest find an opportunity to continue his or her ministry more than anything else and that is to be kept in the loop, so to speak. But since being "made redundant" I have never been invited to a chapter meeting or a retreat or a conference or seminar. I never receive newsletters or emails from the diocese. I am not on the diocesan list of clergy. Heck, I don't even get a Christmas card from the bishop's office.
So, very soon an unemployed priest becomes separated from the church and out of touch. This being out of touch is then used against the priest if he or she tries to get another job.
It's just one of the ways that a bishop who sacks someone he doesn't like gets to make sure the sacking sticks for ever.
POSTSCRIPT: I've just had an awful thought. If anything the Apostles "bind" on earth is automatically bound in heaven, and bishops are the present day holders of the apostolic office, then I am going to be unemployed and broke when I die just as much as I am now. And there will be nothing God, Jesus or the Holy Spirit can do about it without going back on their word. You know, bishops should think more carefully before being cruel. Not only do they risk ruining an earthly life they risk ruining a life for all eternity. On the bright side, it means one less reason for taking my own life to get away from the misery. What's the point if there's just the same misery on the other side?