Can you inbox me some links for self study?
I know them from their practical side only.
In terms of article or videos for self study, I recommend the website
TwelverShia.net - Refuting Shia Allegations Online Everywhere . It is made by a collection of sunnis from different religious backgrounds and countries (including ex shia persians, lebanese sunni, bahraini sunni etc...). Coincidentally since the twelver shia leadership in India is quite close to the BJP, the website was blocked in India (not sure if it's still blocked though since that was a few years ago). They also have a youtube channel which does both short videos like exposing taqiyya such as :
And they also do long documentaries (both about politics and religious differences) such as:
There are also people who do debates with shia such a bro called Muhammed Hijab from the UK, he also debates other people aswell like non-Muslims etc...:
To be fair with you, my own stance was the result of interacting with a religious twelver shia on a UK student forum for years so I never really looked at websites or channels like the one above even though now I post this website/channel wherever I'm able to lol. Drip by drip I was introduced to twelver shiaism beliefs and practices through that interaction and that shaped my opinion. He was legitimately like Ammar Nakshwani in that video above, he was nice to our faces but a pain behind our backs (I found his account elsewhere on religious shia forums and saw his true nature). This guy was a master at taqiyya.
I've posted this in public so that other people may see the website + youtube channel, it's pretty beneficial.