Planning Rajasthan trip in Jan

Hey, so I am planning a trip to Rajasthan in the month of January. It is more like a workation. I would like to go for 10 to 15 days, and also I would like to start and end at Jaipur or Udaipur because I can only get direct flights from there. Can someone suggest me what locations would be good to cover as there are many places in Rajasthan, Jaipur, Udaipur, Pushkar, Jodhpur, Jaisalmer, et cetera, and also the order in which I should visit them like say Sankranthi in Jaipur… looking to spend more time like 5 days in Jaipur and Udaipur and lesser time in other places. Also, looking for additional tips like hostels, weather and offbeat places to visit. (Min duration 10 max 15)