I’m still using predominantly Hohner special 20’s and I am still happy, though I too have seen a slight loss in workmanship over the years. Alas, like too many things these days, they don’t make them like they used too. In hohner’s case, I believe they have gone away from hand tuning, to machine operated tuning.
I’m at the point now where I’m considering reaching out to some different manufacturers for samples to review, both for members and myself. Once I get off this current tour, I will do that and let you know how I go.
In the meantime, I can’t talk specific models, but a suzuki or seydel would be worth a try.