You can create a separate notebook in addition to the one you would have for your own written poetry and use this one to mark the poems you love the most. You might copy them from books, print them from the internet or acquire them from other sources. You can then copy or paste them into your notebook.Use this notebook to write notes, highlight and other things to your poems. Write about how the poems make you feel, what your first impression is, what kind of mental images you get when you read it and much more. This is the best way to really understand the poems and you can read back over your notes any time that you want.
As we mentioned, this same concept can be applied to the poems that you write yourself. You can also look for patterns and common themes. Do your most favorite poems all seem to have certain things in common? Do they all rhyme or have a specific rhythm to them? Are they all on similar topics? Do you prefer a certain writer's style more than any other?
You can also look for common themes in your own poetry that you have written. Keeping a notebook will help you understand yourself better as well. One well-known poet that I have always been a big fan of is Emily Dickinson so many of my notebooks have works by her. Emily lived from 1830-1886 and was a very solitary person. Her works did not become published until after her death. I do not know why she has always stuck out to me so well but it always felt that her poetry was speaking to me. She was a young woman just trying to live life. She had many experiences, emotions and relationships of other young people of her time but most of the poetry that has really made her a famous name was written before and during the Civil War period.
Emily was a person who was intrigued and inspired by poetry the same way that I have always been. As she wrote in a letter to a friend "If I read a book [and] it makes my whole body so cold no fire can ever warm me I know that is poetry. If I feel physically as if the top of my head was taken off, I know that is poetry. These are the only way[s] I know it. Is there any other way?"
I think when I read Emily's poems, I feel that passion she has for words and for poetry and for life. I feel it deep in my soul and I can relate to the way she feels and the way she writes and this is why I always enjoyed her poetry. You need to find writers and poets that make you feel this way and those are the ones you will most enjoy having in your notebook.