another catholic church reading ?

Usually you have readers or the preist or deacons will do it for you

You can choose up to four readers (one for first reading, one for pslam (if you're reading it, not singing it), one for the second reading and one or two for the Prayers of the Faithful (the petitions).

In my opinion, I would have friends or family do it... the deacon or priest of course can do it, but i am using the readings as an opportunity to include people that are special to me but they're not in the bridal party. Deacon or priest ONLY can read the Gospel.