Is there taqiyya that can be necessary in these times in the West? Or what topics are wajib even when there are no teachers or sources in english?

I can not judge the taqeyya issue from here. It depends on your self and the community you are living in.
From my side, I do not see that there is a gap for it in the west, as as far as i know and see, no one cares about your religion, and how you practice it.
The important things you need to know is about your faith, and how to worship Almighty.
When ever you need any information, you can get in touch, and I am at your disposal.