Or, which of the Goldberg Variations would be good to start with? I'd say I'm at an intermediate level now (but still lacking a teacher! I've said to myself (and on these forums) that I'd quit because of no one to guide me, yet I keep coming back).
French Suites fulfill your requirements. Being suites of near 5 short dances, they have variety of tempi, mood, articulation, embellishments. I suggest No. 3, No. 4 and specially No. 5.
I agree with Rafant and would also add No. 6.