I would like to create an online community similar www.experts-exchange.com. What could be the best web technology and the associated cost for this? What could be the best web technology and the associated cost for this? Interested if it could be developed using www.bitrix24.com or Jive Software? What could be the average cost for such web sites development from scratch
Honestly the tech you use is far less important than how you can attract users. The value is going to come from the people. That being said as long as the platform lets the community interact with each other freely you should be fine.
We can hop on a call if you want to go into details.