特维尔 are one of the valid start options, and have the advantage of starting independent of 莫斯科. They share borders with Muscovy, their vassal 雅罗斯拉夫, and 诺夫哥罗德, the last of which will probably be the first area of expansion. One strategy is, if you can get an alliance with Muscovy before they declare on Novgorod, then you may be able to call Muscovy into a war against Novgorod, promising land, which you do not intend to give them. Taking land from Novgorod such that you border the 利沃尼亚骑士团 will give you a second target, who may prove easy pickings depending on the timing of when 波兰 tries to go to war with the 条顿骑士团, with whom the Livonians are usually allied.
梁赞 are one of the valid start options and start with the greatest total development. They have the advantage of starting independent of 莫斯科. They share borders with, 立陶宛, 大帐汗国 and 奥多耶夫. They start able to rival Odoyev and have easy access a mission granting a claim on them, making them a logical first target for expansion. It is often possible to declare war on Odoyev before the Golden Horde, Muscovy or Lithuania, either warn you or guarantee/ally Odoyev. From there you have choices. Usually you will want to ally Muscovy, and use them to declare on the Golden Horde, or possibly Lithuania (especially if they are not in a PU under Poland). From there, switching to Sunni may be advisable, and expanding down to the Caucasus until you feel large enough to take the fight to Muscovy. If Lithuania are not forced into a PU under Poland the situation is even more complex as you may even wish to ally Lithuania rather than Muscovy, and try and use Lithuania's rivalry to help you to destroy Muscovy.
雅罗斯拉夫 are one of the valid start options, and start as a vassal under 莫斯科. They share borders with Muscovy, and 特维尔. A first step as Yaroslavl would be to achieve independence from Muscovy, which will almost certainly require support from a similarly large nation. This will usually be their rivals, such as 立陶宛, 诺夫哥罗德, and 大帐汗国.
奥多耶夫 are one of the valid start options. They are a single province nation inconveniently situated between 立陶宛, 莫斯科, 大帐汗国 and 梁赞. The latter usually being their only option for early expansion assuming Ryazan won't get any allies, they are however usually either allied to Muscovy or guaranteed by the Golden Horde. If the player is able to ally either Muscovy or Lithuania (the latter being unreliable because it could enter a PU under Poland at any time) and manages to either gain 10 favours or the formerly mentioned nations want land from each other they can call them into a war against the other either in exchange for favours or by giving them one province in the peace deal. It is highly recommended to actually give the ally a province, as they will be needed for a second attack around a decade later. Additionally, playing as Odoyev gives the player the opportunity to earn the Mass Production achievement (starting as Odoyev, own at least one manufactory of each type).
It is generally recommended to keep track of the movements of great powers around the Russian region, usually these are 莫斯科 and 波兰. Alternative great powers that could be around are 立陶宛 assuming Poland didn't get its Personal Union over them and 诺夫哥罗德 if they manage to beat Muscovy. The player might try to become friends with one of these nations so that they might help crushing the player's kinsmen. When not playing 雅罗斯拉夫 it generally doesn't require much attention, as Muscovy is likely to inherit it eventually anyway.