We started with a classic. This was my "family" game growing up. My grandma loved it and we'd always play when we visited. What's there to say really?
Any house rules? We're pretty lax in my family when we play about looking up words. If I recall correctly though, according to the rules the dictionary is only to be consulted if someone were to challenge someone's word. We just kind of use it whenever to look up spelling or to see if a particular two-letter word is a thing, etc. It is however frowned upon to simply go skimming for words at length.
We also count the center tile as a double word, so starting player gets a double word off the hop. Not sure if that is by the book or not.
One tradition I enjoy in our family is that when someone does get a scrabble they record the word, the score, the date in the back of the dictionary. It's always a fun moment to add to that list and neat to look back and see some of the excellent plays and recognize whose handwriting it was. Our dictionary is from 2002, and is starting to run out of free pages.