How do I make a sprite automatically spawn based off of tilemaps?

I want to make a ledge grab mechanic for my game but I only know how to do it by manually placing sprites on EVERY ledge which my game is far to big to do that. so I need a script that will detect if some requirments are met and then place it

Is 5+ tiles tall

Has 3 empty tiles in front of it

the ledge its on is at least 2 tiles wide

Use a set of helper sprites that can check your requirement/condition with overlap.

Move them to each tile in your tilemap, check conditions, and if true place ledge sprite.

Alternatively you can check these ledge grabbing conditions whenever your character collides with ANY tile while airborne, instead of just your ledge sprite...