I had previously mentioned my favourite charcoal as natural lump. My favourite brand right now is Nature’s Own Basques Hardwood Charcoal. The bags normally contain a nice mixture of large, medium and small lumps of charcoal so I slit the bag open lengthwise and use what I need for the particular job. This brand produces a nice heat and goes high or low and slow without issue. I also enjoy the scent and to me it seems to impart a nice smoke flavour.
Oddly this is also the only brand of charcoal where I’ve had a foreign object in every bag: mostly it’s a rock but my last bag had a long crumbled wire that resembled a coathanger.