Yes, absolutely! Adding another baby to the pack works wonders!
However, based on my experience, there are a few things that you would want to consider such as, is the older pup well socialised with other pups?
The new pup would playfully bite the older one - so you’ll have to be cautious of that. It fades away gradually.
Resource guarding will be another thing to keep an eye on.
My older one is still jealous of the younger one :( I tried to make them friends, and she’s very nice but we’re working on making him be as he usually is when she’s around
Adding sibling to your existing pet would be fine provided
1: you have really trained pet
2: be prepared for playful biting between two and you will have little difficult time in the beginning. However things will gradually be fine
3: you have enough time to dedicate to the older one because he will be jealous😅
Having said all of this, may be you should wait for some more time to get your second one because first one is still a baby.
Think through and go for it. All the best
Adding to my previous comment :
Your first one is still a baby and for large breeds it takes time to mentally develop and they are still babies at mind and heart :)
So waiting for another 6-8 months would be a good idea is what I feel :)
Thanks for your idea. Will wait for another 7-8 months. As you told he still acts like a baby he is grown from outside but from inside he acts childish. Will wait for the right time