https://www.orangetreesamples.com/blog/free-jazz-funk-drum-sample-library

http://www.vstplanet.com/News/10/Free_jazz_funk_drum.htm

http://www.drealm.info/sfz/GregJazz/

http://bigcatlists.blogspot.com.au/2015/05/free-drums.html

https://smmdrums.wordpress.com/

https://smmdrums.wordpress.com/category/sfz/

http://www.powerdrumkit.com/

Perhaps not strictly "jazz", but very versatile and loads of editable features: http://www.vst4free.com/free_vst.php?plugin=MT_Power_Drum_Kit&id=2783