The few I've bought recently have been from CRC - Schwalbe 1.5-2.2 IIRC - for a Marathon Racer.
I wish Schwalbe would put the bloomin seam somewhere *other* than right in the middle of where the tread is, I've recently had two punctures (pretty sure it's top-dressing related) and they've both been near the seam, so not so easily fixable. Having said that, some careful paring away back at home with a (safety) razor blade and using a glue-on, rather than self-adhesive patch, and I think I may have rescued them...