Most subreddits have many flairs and so many posts that you won't be able to find what you want without any specific flair. But the only way that I know to choose the flair that I need so that the sub shows me what I want to see is to search through all the posts and wait until I find the flair that I need.

Is there any other way to activate the flair that I want without having to search for it? I know that there was a time when it was easy on pc and phone to do that but since Reddit changed it's design I can't find it anymore. I looked at so many subreddits and searched everywhere but couldn't find the location of where the flairs are so the only way that I have until now is just by searching the flair that I need through the post and that takes up to 10 minutes at some subreddits. please help.