Woodspinner,
I usually use Oregon chains on my Stihl. As suggested, try ARbtalk or go along to your local arbiculture store and ask for their advice. Not sure where you are based, but F R Jones in Bell Green Sydenham is one place that a lot of pros use. The Ernest Doe chains of shops is also good, especially for chain oil.
Do pick up the right sharpening kit for your chain as well.
Play safe.