are magnepan mmg any good and intergrated amp suggestion for them

Never heard them but they were on Stereophile's  Rec Components List for years.

The MMGs are excellent.  They do need some room away from the front wall to image properly and have that great depth.  You can't just plop them down anywhere and expect them to sound good.

They are also a little power hungry.  The more power the better.

As long as you intend to listen from only one position in the room, they’re great(kind of a personal-listening system). Not much output, below 50Hz. All caveats, mentioned by Mofi apply.  The MG12/QR is another good, smaller Maggie, in the price range.