Yup Fangraphs the best for this. There was another wite that logged reliever pitch counts but it disappeared few years ago.
Fangraphs also best for looking at left /righty team splits in recent form, can break it down last two weeks /last thirty days.
Also for pitchers their splits tool is great for recent form, can break it down whatever way you want, through five innings, vs lefty/righty, in last 30 days, etc