B+W MRC or Nano, probably best to use the XS-Pro mount (slim, but with front threads for the lens cap). For a dSLR, there is no difference between UV and clear filters, get whichever is cheaper where you shop.There are a lot of photographers who swear black and blue that filters are IQ killers and used only by paranoid pussycats. This is a democratic environment and they are entitled to their viewpoint.
I'm a strong advocate of protective front filters. With the exception of ND and CPL filters, the actual primary function of filters as was true in the film days when we used them for colour correction has evaporated. But the need for protection of the front element and filter thread remains as valid as ever. My equipment is in daily use, primarily on location. Over time I've come to find that my UV/ClearProtective filters need to be replaced every four or five years due to a slow accumulation of very fine scratches & scuffs, mainly from cleaning in the field. On rare, regrettable occasions my lenses have had biffs and bangs. Hoods have a great protection function, the strong flexible plastic absorbing a lot of impact energy. Front filters will also protect the lens thread which is often made from fine metal, often softer than you'd think.
It's a smart move in other..ahem..activities to wear your protection. Same for your lens. Dr Neuros suggestions are good. Buy now....