Kiev to Istanbul
 

Planning tour of Russian Fed in May June 2022. Would like to exit via Kiev Odessa Romania Bulgaria Black Sea Ports? to Istanbul. Any suggestions would be appreciated.

Maybe the train situation will be back to normal by then. Odesa (Ukrainian spelling) is a bit out of the way, you might need to go via Chisinau to get to Bucharest, which may require dealing with the border guards in Transnistria.

Suggest buying a train map of Europe - maybe https://www.amazon.com/Rail-Map-Europe-2nd/dp/0995799822/ref=sr_1_3 - and researching on https://www.seat61.com/index.html - for example: https://www.seat61.com/international...st_to_Istanbul or https://www.seat61.com/international...ia_to_Istanbul - both routes that are currently suspended. For schedules use bahn.com.