"may you walk on warm sand?"
Every Khajiit says that if they like you
Ra'virr and Jobasha for example will also say this.
My list:
Aryon - one of the more normal among the telvanni and also more open. You can see that already when visiting his tower
Baladas Demnevanni - at first a bit on his own, but if you get to know him better he is a nice person. Does also know things from the dwarves and will reward you with a companion, which is the only companion that isn't added with a mod.
Therana - Just plain crazy and that's why i like her. Can tell you some good stories which are fun to hear.
Divayth Fyr - Just the nice grandpa. Knows almost everything.
Elone - one of the first persons you met. Will put you into the right direction.
Uncle Sweetshare - Like therana also crazy, but then from the sugar he has taken. His song is hilarious.