When planning an international trip, I find it easier to deal with entry requirements before getting caught up in the itinerary. Flights, accommodation, and sightseeing can all be adjusted, but knowing what travel documentation applies gives you a better foundation for planning. Anyone considering a trip to Russia can start by checking Russia eVisa for general information about the eVisa process. From there, you can look at the details relevant to your own journey and prepare accordingly. I would check this fairly early rather than leaving visa research until the final stages, especially if your travel dates are already decided. It leaves more time to sort out the rest of the trip without unnecessary pressure.