@patelbhavin you can use my playbook to install nc + both online office suites in less the 10 minutes (depends on the internet connection of your machine).
just edit the inventory file appropriated. and - if you use a virtualbox, vmware or cloud machine - take a disc greater than 16GB. the two docker images need place.
Just guessing based on their technical inner workings:
For a single simultaneous user it is probably about the same, for multiple users on the same document Collabora might have a slight edge, for multiple users on multiple documents OnlyOffice will probably win by quite a margin (as it offloads much more work to the client PC).
The standard CODE docker image for Collabora is limited to 20 simultaneous users (or 20 simultaneous documents open? Not sure). So unless you want to change the code, it will not be easy to host collabora for that many users. However one of the reasons for this limit is that anything above that will require a really high powered server as Collabora does all the work on the server side and only sends rendered tiles to the thin clients. Try opening 30 documents on LibreOffice on your Desktop PC to get an idea how much RAM/CPU it will require
The standard docker image of OnlyOffice also has some limits, but I think these were recently changed? However in general with this many simultaneous users OnlyOffice will pretty surely perform much better than Collabora.