ShoeInk
I would personally stick to one point of view. Otherwise, it’s confusing for readers. If you are going to do this, then you need a way for a reader to keep track of whose perspective they are seeing. Don’t assume we know and be careful not to break immersion.
One way you can do this is to make each chapter a different perspective that is labeled in the chapter title. Do not switch mid chapter if you do this because it will be disorienting to the reader. Also, end the chapter if you want to switch! Do not like put your own title or make a line with symbols or something. That really breaks immersion. Chapter breaks are at least going to be a part of the story anyway, so you aren’t adding distractions.
Another way is to use third person omniscient rather than a bunch of first person points of views. This is a point of view where the narrator (person telling your story) is someone that can switch perspectives or knows the thoughts of all of the characters. Since you are always in third person, you never need to worry about how to get into it. For each characters perspective, you just need a way of telling which character you are about to jump into the mind of. This can be done with a lot of internal monologue, which works like normal speech but is “thought” rather than “said.”
Other ways to clue the reader is is in the narration stated who you were talking about in each paragraph. Something like, “Character A wasn’t so sure because XYZ.” Just be careful you don’t get too repetitive with either option. Mix up how you say things so that it isn’t the same exact words and format to start each paragraph or sentence.
In my opinion, third person limited is the superior way to tell a fantasy story. However, third person limited will work best for what you are trying to do. All you need to do it put thought into why your narrator can read everyone’s mind. It’s best if there is a reason other than, “I’m the author, this is a story, and I said so!” For example, perhaps your story is told by god (or a god?) that is all knowing/all powerful that follows the story of a few of his subjects he finds interesting? Anyway, this is up to you to figure out in a way that makes sense.
If you do go with the switching first person, remember that the narrator is switching. This means that how you explain things, even if they aren’t related to any character actions, has to change to match your narrator. As an example, if the character is stupid then the narrator has to be stupid! A dumb muscle head can’t know everything about the word or situation or he isn’t actually dumb. That is why writing in this format is really hard. Even describing the setting has to change when you change characters because they will see their surroundings differently…