Just finished Under Salt Marsh and enjoyed it a lot. The Guest with Eve Myles is another bit of Welsh fun. Not sure how available it is but I recently finished a two series drama called The Gone which is set in New Zealand and features an Irish link (an Irish detective teams up with a local Kiwi as a result of a young Irish couple going missing - why that comes about is plausibly explained). Beautifully shot, and Maori language and culture feature prominently. Its well worth a watch if it is available in your part of the world.
I'm trying to decide what to watch next. There's so many good series out now on various different streaming platforms. So much better than when it was cable-only!