My Lurchers have been very different. One loved a Kong stuffed with sardines, the other couldn’t be bothered, but adores his Kong Wobbler and treat dispensing ball. He also loves his Trixie Snake.
Toys wise, one would only ever entertain a tennis ball, the other played endlessly on his own flinging soft toys around and chasing them, but wouldn’t even look at a tennis ball. We bought the ‘unstuffed’ toys generally, as he did tend to get through them.
Both enjoy/ed lots of the canine enrichment games with boxes, cardboard tubes, scrunched paper etc and me hiding treats for them to find. My old boy loves his snuffle mat, licki mats and brain training games.
Definitely have a look at the Canine Enrichment FB page, as others have suggested.
Also, have a look at Kikopup’s YouTube videos on capturing and encouraging calm behaviour and the settle, as you can then develop that into clear times for when it’s appropriate to play and teach him to settle when you’re working. He doesn’t need to be full speed all the time, in fact he would benefit from a mix of exercise, brain training and relaxing/rest.