Quite a broad response to a seemingly simple but complex query
I don't agree to ChachaHeels that in order to find a good homeopath you have to know homeopathy. This would mean that in order to find a good expert of any field you have to learn it yourself first? So lets try becoming a good car mechanic, a computer technician, a doctor, a plumber...... The purpose of contacting a group of individuals who have been in this field and have gone beyond learning the ropes should have been able to answer this question objectively.
If you were to ask me how to find a good mechanic or a good workshop, I would tell you maybe 15 questions in a jiffy which would guarantee that you end up with the best possible available. Why, because this field has been my passion for the last so many years. I can guide novices and equip them with the checklist that would quickly separate the boys from men.
There are two basic approaches to working in any field, system based and personnel based.
System based always yields consistent and reproducible results whereas the personnel based yields inconsistent and "maybe" results. (system based means that everyone follows a certain procedure and checklist to achieve a certain task, it could be Mr. X or Y. Personnel based means that everyone will work as per his will, he can put empahsis on one thing whereas his replacement will put emphasis on another, a total chaos in a management atmosphere)
Homeopathy today is personnel based and that's why there are 1000 ways of experimenting on a patient. I simply can't absorb this that despite two or so centuries of work in it, there is stil no standard protocol for case taking. A standard protocol which everyone follows, similary no protocol for remedy selection.
Have you ever seen a problem solving checklist or decision tree. Why can't such a tree be developed for human ailments. Maybe this is where the homeopathy will be in coming years so that everyone interested will be able to learn and produce reproducible results. Homeopaths will come up with same remedies for same patients. No woodoo magic, pure and simple logic and science producing tangible results time after time.