Since the section is under construction, I haven't made a gateway that will be linked in the navigation yet. I'm thinking a list of all collections in the same order they appear in-game would be good, with minor tips on how to get them along with the reward. Then, if someone wants to see what they are missing they can go on to the page about that type.
I would already have that list, but didn't want someone to come to that page looking for collectibles information only to be disappointed that there are only 3 pages linked. It kind of takes pressure off me to build it so quickly as well. When I have a few more done and an open schedule to make a run on finishing the section, I'll get it in the navigation. In the end, I'll link people to gardening for plants and fishing for fish, in order to avoid essentially duplicating those, but want to put all other types on their own page .. as I did with space prints. This will help for finding that info in search. I may have gone into more detail than you wanted, but that's my plan.