You don't mention where you are, but in the U.S., your selection is going to be somewhat limited. IIRC, the People S200 has the same tire sizes as the People 250 -- 110/70-16 on front; 140/70-16 on rear, right?
The most readily-available is the Michelin Gold Standard, but reviews are mixed on these. Supposedly they wear very well, but are not the greatest for feel/grip.
I personally was pretty happy with the Kendas. I got over 14,000km on the OEM rear tire, but probably should have replaced it at 11 or 12,000km. Since my dealer had a Kenda on-hand, and I knew he would not sell it to anyone else, that's what I just replaced my rear tire with this past Wednesday.
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