If you're a peaceful civ then I think one of the best neighbors you can have is Tomyris. She's a military/aggressive Civ but it is possible to get on her good side. She's less likely to DOW you if you stick to your word (i.e. if you tell her you'll not forward settle her). Just be sure settle away from her and don't break a promise lol. If you trade with her and keep things cosey she'll consider you a friend and kind of be like your 'protector.' Same with Teddy as an ally. Norway and Aztec will DOW most of the time especially if you're military is low.