Create custom lookup component for contact and after clicking on any particular Contact display any 2 field information of Contact. Display this component in separate lightning tab.
Kindly let me know if it helps you and close your query by marking it as solved so that it can help others in the future. It will help to keep this community clean.
Greetings to you!
Please refer to the below links which might help you further with the above requirement.
https://newstechnologystuff.com/2018/07/07/custom-lookup-lightning-component/
https://www.jitendrazaa.com/blog/salesforce/lookup-component-in-salesforce-lightning/
http://sfdcmonkey.com/2017/07/17/re-usable-custom-lookup/
https://www.forcetalks.com/blog/how-to-create-custom-lookup-in-lightning-component/
I hope it helps you.
Kindly let me know if it helps you and close your query by marking it as solved so that it can help others in the future. It will help to keep this community clean.
Thanks and Regards,
Khan Anas