Like @Cheeseeater said, I would hatch them as you get them. It will save you DNA from buying them and the less dinos you have in your market the better trades you’ll get. It looks like your park level is in the 40s, so you might not have the trade harbor open yet, but you’ll be happy to have a clear market when you do get it open. Then you can keep only high valued decorations in your market and trade them for resources.
It’s not the end of the world if you don’t hatch them all, I’m almost at 500 and doing ok. Once you get over 999 it will just say 999+.