As we prefer after determination of HS code, you can use matrix study system to see and evaluate all countries at the same time in same table. In order to do that, you need to use data sources on internet which are open to public like trademap.org , comtrade.un.org
And finally after you save and arrange table, your matrix is ready as below;
While you are preparing that kind of matrix, above sources may not meet with your all expectations to find relevant data. You can also take benefit from another web pages like shown below ;
EU Market Access database can be very useful to find customs rates, necessary documents while you are doing export or import.
It is impossible to mention and show all sources’ web sites in here. But there are a lot of web sites exist in internet.