OK, so my list is going to be a little controversial, so I'll say this ... you said "interesting to watch" so these are guys with the upside to be impressive but not necessarily guaranteed to be. OK, the first one is pretty common, the other two are not.
1. Raekwon McMillan
I was higher on him going into the draft than the vast majority of analysts. When looking at a prospect generally people look at where they are at, and what is their perceived ceiling. I find that it's also worth considering their trajectory over a longer period of time as well as how they are harnessing their talents. So I saw McMillan as a better prospect coming out of High School than most of those other LB's being discussed. I saw him master his role at Ohio State. I saw him determined to improve every step of the way. I saw him become a leader on and off the field. I saw him become truly accountable at an early age. I saw him play within himself and within his scheme very effectively. People often under-emphasize players that are "smooth" athletes. They prefer to geek out about the explosive athletes. But at the end of the day, the LB position is one of the positions that requires the most instincts. Players, like Zach Thomas, who can master that, get into positions that require less explosiveness, less quickness/agility, less pure speed, less fast-twitch athleticism. Because McMillan has that, he rarely needs to flash his athletic ability. Compounding that, he is a smooth athlete, so while he may get from point A to point B just as quickly as a more explosive guy, it looks less impressive. I think he has the speed and quickness to be a very good MLB. I think he can become a good coverage LB in time. What I'm looking for from him this pre-season will be how quickly he starts to master the mental aspects. Ultimately, the kid is highly instinctive and a workaholic. He will be a great MLB. But, the jump to the NFL as the brain of the defense for a kid who cannot yet legally drink, well that's a big ask. I'm interested to watch how quickly he begins to understand how all the pieces work together in the defense. There is going to be a steep learning curve and a lot of wrinkles to learn ... all while going up against bigger, faster, more precise men.
2. Chase Allen
What?!?!?!?!?!? Yeah, the UDFA. The kid is one of those small school guys with big size and speed. Can he win a roster spot at Sam and make Misi expendable? Longshot, to be sure, but hey, Gase is going to keep a couple of UDFA's, I just have that feeling. Could Allen be one of those guys?
3. Praise Martin-Uguike
OhNoes ... not another UDFA!?!?!?!?!? I hope I got that name right. This kid fell not because of talent, but because of an unusual history that may turn some people off. It definitely stunted his development and hurt his career arc. But this guy has the burst and lower body strength to contribute on an NFL roster. But, he'll be a bit of a tweener, with not enough size to win a spot in our DE rotation and maybe not enough experience and knowledge to win a spot in our competitive fringe LB spots working against guys like Allen, Hewitt and Hull. I can see him winning a spot though if he can become a good contributor on special teams. Guys like Fede and Hull have got to be looking over their shoulders at this guy.
4. Isaac Asiata
Finally, a real player! Well if you're still reading, I'm less concerned about practices without pads. I want to see how he does when the pads go on. He's got a lot to learn, but if he can get a handle on things by the 2nd pre-season game, I'd start the road grader. Our OL needs more power, needs more run blocking, needs more take-charge mentality, needs more nasty. Welcome Isaac, please start imposing your will on the AFC East.