Of course! Here are some useful tips for your journey through Volgograd, Saratov, Samara, Yaroslavl, and Tver:

Best Time to Visit:
The best time to visit these Russian cities is during the late spring (May-June) and early autumn (September-October). These months have milder temperatures and less tourists.

Route and Accessibility:
You can travel to these cities by train or flight, both of which are accessible from Moscow. The Trans-Siberian Railway line also connects Samara with major Russian cities.

Altitude and Acclimatization:
These cities are located at relatively low altitudes, so acclimatization is not a significant concern.

Accommodation and Booking:
Booking accommodations in advance can save you from last-minute hassles, especially during the peak seasons. There are various types of accommodations such as hotels, guesthouses, and hostels to choose from.

Clothing and Essentials:
Pack clothing appropriate for the season. Winters can be very cold, so heavy jackets, hats, gloves and boots are essential. In warmer months, light clothes with a few layers for cool evenings are enough. Also, always carry a good-quality map or navigation device.

Health and Safety:
In general, these cities are safe to travel in. However, ensure you have health insurance and keep emergency numbers handy. Also, drink only bottled water and ensure your food is properly cooked to avoid health issues.

Local Etiquette and Respect:
Russian people appreciate if tourists make an effort to speak a bit of Russian. Remember to dress modestly when visiting religious sites and show respect for local traditions and customs. Always ask before taking photos of people.

Remember, each city has its unique charm and attractions. Research about each place's special features, local cuisine, and must-see landmarks to make the most of your trip!