Items that add to skills. Is there a guide?

[Hobit of Bree]

Is there a general guide for items that add to skills? I do understand the item creation rules, but I'm wondering if anyone has ever put a "these are all the ways you can add to skill X".

In particular I'm interested in fairly low-cost, standard, items that generically add to survival (not just a subset of the skill).

I'm playing a summoner who, for story reasons, specializes in survival and the DM has indicated that cheap, standard, items might be available for purchase. But there are just too many items to search through.

Thanks!

[Serisan]

Incandescent blue sphere ioun stone, cracked - 200gp for +1 competence bonus to a single Wisdom-based skill.

[Wonderstell]

Here.
Archives of Nethys, Search

Check the boxes for "Magic Items" and "Equipment", while searching for "Survival".

Other than that, a Cracked Incandescent Blue Sphere Ioun Stone would give you +1 to a wisdom-based skill of your choosing for 200 gp.

[Tarondor]

Masterwork tools. Best thing ever for a skillful character.