You can say "¿Qué haces ahora?" or "¿Qué estás haciendo ahora?"
que estas haciendo ahora or que haces ahora
What are you doing now: ¿Qué estás haciendo ahora
Mama, hacemos las tortitas/los pastelillos ahora?
Hola. ¿Que estas haciendo en estos días?
¿Cómo estàs ustedes? is how you say "how are you doing everyone?" in spanish.
Hacer
A problem in English is that we use the progressive form for almost everything. It is not used very much in Spanish. So "doing that" is usually expressed in Spanish in the simple present tense. "Hago eso", or I do that. If you are doing that right now, you could use the progressive in Spanish, or "Yo estoy haciendo eso".
Doing good = haciendo bueno but this sounds terrible in Spanish. Generally speaking you should say "doing well" which is haciendo bien.
The word 'now' in Spanish is 'ahora', which is pronounced ah-or-ah. If you are trying to say 'What now?' in Spanish, you would say '? Y que ahora?'
¿Qué haces?
Que hace?
haciendo lo