Definitely agree that the "go and try lots" is the way forward. It's such a personal thing, what suits one person wonderfully will be totally wrong for you (frinstance, I've been using Wolf shoulder rests since I was about 10 or 11!! Long neck and few others will go high enough to make life even vaguely comfortable for me. And no shin rest just means the fiddle slides off my shoulder! Used to use a chamois-covered pad as I recall with a rubber band at the very beginning

the relief for me of a "proper" rest was immense, and then the upgrade to the Wolf was a huge blessing!

)...
The only place I can think of to recommend is the Bristol Violin Shop, but don't know if this is convenient for you in terms of getting there to try things, and it's been an awfully long time since I went there

but seem to remember it's the kind of place that would have lots of potential ones to try. That said, I also remember they were a bit scary/pushy/condescending

so if you can find a friendly luthier with a good stock...
If you can take your teacher along to help you work out the right combination then all the better!
Just spotted this on the BVS website...
violin shoulder rests and pads - may give you some useful info, anyway, on what they stock and (if you scroll down) some of the differences between them...