Any manga about kaiju?
The more they look like people in dinosaur costumes, the better.
what is kaiju?
I don't know about any manga, but I do know of a different story...
I'm going to go with no.
You might enjoy One Punch Man or Gon I guess.
Not by traditional means, but i guess Mushibugyou fits into the category, if only loosely. Show about giant bugs attacking cities but I doubt thats what youre looking for.