The top pacers in Ranji trophy so far are
Anupam Sanklecha - 34 yr old, bowls 125-130 kmph, top speed 135 kmph
Pankaj Singh - 32 yrs old, bowls 125-130 kmph, can hit 135-140
Ashok Dinda - 33 yrs old, bowls 130-135, top speed 140+
Siddarth Kaul - 26 yrs old, bowls 130-135, top speed around 140
Rituraj Singh - 26 yrs old, bowls 125-126, top speed 130
Mohammad Siraj - 22 yrs old , bowls 130-135, can hit 140
Ishwar Pandey - 27 yrs old, bowls 130-135, can hit 140
Sandeep Sharma - 23 yrs old, bowls 125-130, top speed of 135
Ashish Kumar - 28 yrs old, bowls 125-126, top speed 130
In addition we have
Varun Aaron - 27 yrs old , bowls 135-140, top speed 145+
Shardul Tahkur - 25 yrs old, bowls 130-135, top speed 140+
Dhawal Kulkarni - 28 yrs old, bowls 130-132, top speed 135
Nathu Singh - 21 years old, bowls 135, can easily hit 140
Ankit Rajpoot - 23 yrs old, bowls 130-135, can hit 140+
Hardik Pandya - 22 yrs old, bowls 130-135, top speed 140+
Then there are some like Aniket Chaudhary, Pawan Suyal, Chama Milind etc who aren't known much outside Ranji and do not look good enough.
Not including Unadkat, Mohit Sharma, Vinay Kumar, S Arvind all of whom can bowl upto 130 with top speed of 135 at best
Speeds are for FC matches, in shorter formats, some of these guys can go 4-5 kmph faster occasionally.
Out of the entire lot, Shardul Thakur, Nathu Singh, Sandeep and Siraj are most promising. Nathu, if handled well, should be ready in another year or two. Bowls a bit like Shami. Sandeep is a like to like clone of Bhuvi.
No outright pacers as such but we should be able to manage.