Will we Pick up Another NT?

I was just wondering if we will either sign or draft a Nose Tackle since we don't have Malcom Brown anymore. The only ones we have left are DT's and not really considered NT's.
1. David Onyemata- 6'4"/300#
2. Shy Tuttle- 6'3"/300#
3. Ryan Glasgow- 6'3"/300#
4. Malcolm Roach- 6'3"/290#
5. Jalen Dalton- 6'6"/300#
6. Christian Ringo- 6'1"/300#

We need that big hole plugger space eater type in the middle that Brown was for us the past 2 years. We need someone in the range of 320# to 330#. The only one in FA I can see worth a look is Danny Shelton, who is relatively still young at 28 and would probably come pretty cheap. I think we also need to draft a NT too. The best all around NT's I've done some research on so far is:
1. Bobby Brown III- NT, 6'3"/325#, Texas A&M, Stout in the middle against the run and can collapse the pocket.
2. Alim McNeil- NT, 6'2"/320#, NC St. good against the run, won't get you many sacks. Needs to get better technique.
3. Glen Logan- NT, 6'3"/339#, LSU, can be an immovable object in the middle of a D-Line. Can't find much information on him.
I was also thinking maybe a guy like Christian Barmore could work at the NT position. He is 6'4"/310#. Was reading a bio on him that says he plays the run and rushes the passer exceptionally well.
What are y'all's thoughts on this.