Here's a link to an extended discussion of much the same question - note particularly the link to the list and discussion on Stan's tour-tips.com site:
5dimes is consistently good, including allowing you to parlay the lines they don't classify as "props". I've been with them for three years without any bad incidents . . . I haven't used the other books IE2000 listed when he replied to your question in the General Discussion. Among the sponsoring books, 5dimes should be a good fit for matchups . . . I much prefer Bet365 (non-sponsor) for Outright (Win and Top 5) plays on all tours, including crazy parlays.