As far as the clubs/irons go, if you wouldn't mind shipping and some of the hassles that go along with such, I'd make a list and post here. Never know. I got rid of several items last Fall, but I didn't mind doing the work involved.
Most irons are likely not in the collectible category anyway. Very few brands are collectible and the irons would have to be in really nice condition to fetch any decent money. Some Wilsons and Hogans do go for good money, even if they are 'entry level' collectible for newbies. Condition sometimes not important. You may have the ones they can't find.
Otherwise, load them up, drop them off at Goodwill or some such place. We also have Salvation Army stores and a DAV (disabled veterans) thrift store that handles golf clubs. Easy way to get things out of sight/out of home quickly.
Or make a post locally for FREE stuff. Even scrappers may take the irons.
Books, I've always considered somewhat valuable, not always in monetary terms. I have brand new, never read, sitting on the shelves. But won't part with them. Pass them on, even if the kids say they have no interest. They will, after you are gone, believe me.