Out of all those, there are many I would disregard spending any time promoting.
I think you'll probably have the best luck in trying to sell the below. Whether you will achieve
"end user" level sales though is something I'm not as sure on.
- BasketballBetting.co.uk - Betting companies may want it as a 'vanity' domain if it's a decent enough price (Ladbrokes for example own FootballBetting.co.uk, although that probably gets not bad type-ins). If not, advertise in the usual places.
- CheapCarInsurance.me.uk - Good search volume, but insurance companies won't be interested for obvious reasons. Someone on here would probably have it off you though.
- ComedyDVDs.co.uk - Perhaps the person who bought your singular may want this.
- DiningFurniture.org.uk - Has some search volume, could be profitable for an affiliate website. Either rank it and sell it to a merchant or let someone else build an affiliate website and do the work.
- ITForums.co.uk - A lot of effort needed to start a forum, but you may find a taker on here with there being plenty of people involved in the industry.
- JetHire.co.uk - Pitch it to the companies advertising on the term. Failing that, perhaps Sedo auction?
- PaternityTest.org.uk - Extension doesn't look too bad for this one, try contacting the companies bidding on the term.
- RareWines.co.uk - As with the jet hire domain, pitch it to the companies advertising on the term. Failing that, perhaps Sedo auction?