This list of tests I recommend taking are in no official order, however usually the longer they are, the better.
8 Values: https://8values.github.io/
This test rates you on a scale of 8 different subjects. It is really good at breaking down individual beliefs, rather than merging them all together like most tests do. However, the part of the results page that tells you your ideology has been known to be wrong, so don't pay too much attention to that part.
My results:
8values results
Political Compass: https://www.politicalcompass.org/test
This is a test that divides questions into different groupings. Some claim this test has a left wing bias, but I don't see it and actually enjoy this test. The results of this test are divided into a double spectrum test. The left/right spectrum determines social/economic/domestic issues while the up/down spectrum determines government control/government intervention issues. Another downside is that there is no "neutral" button for questions, which may sway your data a bit.
My results:
compass results
ISideWith: https://www.isidewith.com/
This test is good for showing where you stand on various country's politics. There are many countries to choose from. The test tells you which parties you best side with, which candidates you side with, and 7 scales such as the scales you see in the 8values test. On top of all that, this test allows you to choose how much you care for the question, which allows for more depth in results. Although, the percentages for parties are kind of strange. If you don't answer 100% for certain parties, it will fill that space with random parties you wouldn't align with. Such as how I received "socialist" "women's equality" and "democratic" and "green" in my results. You know if the party %'s are BS if they say "no major issues" underneath. I would really only pay attention to parties where it states the issues you agree with.
My results:
isidewith results > these were taken with my phone which explains the kind of blurriness and rectangular shape, my apologies.
PolitiScale: http://www.politiscales.net/
I would consider this test a larger, harder version of 8values. Like 8values, this test grades you on 8 scales. However the scales on this test are kind of obscure, but accompany 8values well, forming a larger scaled test all together. This test is also good for double checking your 8values results, as some of the scales are pretty similar, which helps show how truly accurate either of these tests' scores were.
My results:
politiscale results
Political Spectrum Quiz: http://gotoquiz.com/politics/political-spectrum-quiz.html
Although the name isn't very original, this test is an upgraded version of the political compass test. It is basically the politiscale to the 8values. This test grades you on the same compass as the political compass test, has a neutral button, and like isidewith, lets you choose how much the question means to you. I highly recommend taking this very high quality quiz along with the compass.
My results:
political spectrum quiz results (huge image, sorry)