As per the teaching of the Besht I’ve been really meditating on the letters as I daven but I realized that the true shapes of letters as they are written in a Torah or mezuzah which includes the tagim or the chatoret of the Ches for example are not in any of the siddurim I’ve seen. Is there a siddur which includes the letters as they are written in a Torah?
Tagim can be usually found in siddurim printed in Ktav Ashurit. These are usually Kabbalistic (with kavanot haAri), Chassidic (Nusach Sefard, especially the Biala or Toldos Aharon versions) or Sepharadic (Nusach Edot Hamizrach - Sefaradi) siddurim. Here are some examples: