These are my favorites for figure and detail painting:
http://www.dickblick.com/products/winsor-and-newton-series-7-kolinsky-sable-pointed-round/ I believe that the W&N Series 7 brushes are made in the UK, so you should be able to source them locally in a fine arts supply store. If not, Dick Blick art supplies is a reputable vendor that I've had very satisfactory seervice from.
Expensive, but if you take care of them, they will last for years. I usually only have to buy one or two new brushes in any given year. I do use the W&N brush cleaner on all my brushes at the end of the day's painting.
http://www.dickblick.com/products/winsor-and-newton-brush-cleaner-and-restorer/ I follow the W&N brush cleaner with a swish in clean water and carefully re-shape the tips before I put them away (stored standing tip up).
I get the brush cleaner locally from a large arts & craft chain store, but unfortunately, no one carries really decent brushes, so I have to order those.
HTH,
Mike