Drama like RESET ?

Actually Triage is quite similar to Reset, but it's a BL drama.

And maybe Erased.

There's also a drama version but I haven't watch it. I read the manga and watch the anime but I remember the ending is different from the movie (but I may remember wrong).

Put some less thrilling but still has mystery solving and death on it but some are focusing more on the romance, please check the trailer first:

Love in Time

Lovely Runner

Someday or One Day

And some I haven't finished (not because they're bad):

Shining for One Thing

Tomorrow with You

I know, the anime was so great. But the movie is... really, literal definition of boku dake ga inai machi. Perhaps you should try the drama version Boku Dake ga Inai Machi, since the rating is better. I also put it on my ptw. I just know it exist.

Hope you'll also like the others.

 autumn iris:

the drama version Boku Dake ga Inai Machi,

I haven't watched the anime and movie versions, but the drama was good as far as I can remember. 

 mirarmy:

I'm searching for dramas similar to Reset (cdrama)

If you click on the tag "time loop" you may find other dramas with similar theme. But maybe a bit tricky to find the exact same criteria you mentioned. At least you can start from there.

BTW, I just remember I watched Meguru Mirai several months ago, which contain some of the elements you're looking for, i.e. romance, teamwork, mystery solving. I rated this lower than Reset though, but that was just me according to my entertainment fulfillment.