There are a set of 6 or 7 volumes covering the biographies and victory claims of Luftwaffe aces, published by 'Wingleader' in the UK.
Whether or not they include combat reports I don't know, and of course, this is only from those pilots with 5 or more victories. At £30 per volume, they are not cheap, so it might be worthwhile contacting the publisher, to establish if these will be of use to you, before buying !