You might consider units morning report. I've found a few morning reports online but I've not looked very diligently. Company and battery size units completed a morning report every day including location then forwarded to battalion or regiment HQ. Locations used on the morning report may not exist today or the name has changed. One could in theory follow a unit geographically across Normandy into Austria. The morning report may not provide the detail you seek but it might mention specific events with date allowing one to focus their research. The report should list KIA and MIA therefore providing a date and place an action took place. If the unit was engaged in heavy contact or advancing fast the report can be muddled. Each platoon or firing section was providing the information to the company or battery HQ which completed the report. Be advised it might take several days for the command to know a soldier is MIA, KIA or WIA. A soldier may be listed as MIA than days later changed to KIA. There is also a designation for death by not action, I don't recall the three letter code. There was a standard form used so once one breaks the code understanding the others become easier. I would think most morning reports are not online. The ones I read were placed online by the units association. Most units often have websites that may include some WW2 history. While that history might be thin it might prove helpful. Not sure how deep you wish to dive but the National Archives could/should have WW2 morning reports. Other than speaking with a veteran who was in the unit, or a diary, a morning report might be as basic as one can get.