Any modern band that comes close to Mahavishnu Orchestra ?

inna, no good ideas regarding your original question.  In fact, I now find little to no interest in some of the fusion I enjoyed back in the '70s.  Still, MO stands up to the test of time.

I just wanted to share that in spite of a few other comments here, seeing MO live was one of the very best concerts I ever attended.  It was early in their career (so included Goodman) at a small club in San Diego called Funky Quarters.  My date and I had a table (cabaret seating) up front with close views of all the band.  It was one of those special moments when everyone was just on.  The energy and interplay between each of them was just magical.  Lines were traded back and forth and challenged all evening.  And Cobham was simply a coiled spring that seemed to drive the intensity of their music more as they worked through their set.

I only wish now I had been able to find a recording with that intensity and creativity.

For me the closest thing to early MO may be some of the later, instrumental Zappa, but that is not really the same.  Anyway, it is fun to see so many who still appreciate McLaughlin and company.

Pryso, you were very lucky to see them live and perform their best. I read a number of interviews with McLaughlin. After a certain point in time the first Mahavishnu toured all over the world too much. They had to play the same tunes sometimes every other day or even more often, were very tired of everything including each other, virtually had no time to rehears, little time for life outside stage and studio. The characters were also not really compatible, Goodman and Hammer had their own ambitions and challenged John all the time. No wonder, the band didn't last. The second Mahavishnu was different, John himself called it true Mahavishnu Orchestra. Perhaps, but still only one great album - the Visions.

Not Mahavishnu, McLaughlin/Zavinul duo. Very good.
https://www.youtube.com/watch?v=UhHhLCl2_mI

I only listen to four fusion era albums - Bitches Brew and Pangaea by Miles Davis, and Inner Mounting Flame and Visions Of The Emerald Beyond by Mahavishnu Orchestra.
I also listen to some compositions from other albums, not many. I have a Nakamichi 682ZX deck and make compilations.
As I mentioned, tunes like Birds of Fire, Sanctuary, Inner Worlds, New York on my Mind, a few others. Life Divine with Santana is excellent too.

I'm going to have to check out "Visions" again--it didn't grab me at the time the way "Inner Mounting Flame" and "Birds of Fire" did.  I didn't care much for the live album except for one great track by Jan Hammer:  "Sister Andrea."  I do like all the live versions of the material from the first two albums that can be found and I wish I had bought the box set that includes the older material from the same performances that gave us "Between Nothingness and Eternity."  I doubt Columbia will ever release that material as a single CD even though the box set is out of print.  The used price is double what it used to cost new!
Anyway, I absolutely loved this band and I'm glad I caught the original group twice.  I just don't think there's anything that quite measures up to the excitement and the spooky, almost telepathic, communication they had.