BJP national vice president Raman Singh is also likely to reach Dehradun today.
Sources said that state minister Dhan Singh Rawat, who has been flown down from Srinagar, is the frontrunner for the top post.
Uttarakhand CM Trivendra Singh Rawat submitted his resignation to governor Baby Rani Maurya
Tourism minister Satpal Maharaj, Rajya Sabha MP Anil Baluni, Lok Sabha member Ajay Bhatt, RSS member Suresh Bhatt and former chief ministers Ramesh Pohriyal Nishak and Bhagat Singh Koshyari too are being regarded as likely CM picks.
On Saturday evening, former Chhattisgarh chief minister Raman Singh, who was sent as an observer, presided over a core committee meeting where he took feedback from party legislators and left for Delhi.