It fully depends on what country you are in. There are a few great ones for my country that would not make sense for another country, especially not usa. Even the words describing a parties political leanings mean completely different things in different countries.
The best thing is if you can find something that compares what your local politicians/parties said they wanted to do with what they actually voted on or wrote motions for. Then look at what they are now saying they want and determine if that aligns with you, and how reliable they are to actually keep to their word.
What topics?