To find it definitively, you should:
1. Consult your owner's manual: This is the best resource for the exact location in your specific vehicle.
2. Look for a fuse block/relay center diagram: Often found on the inside of the fuse box cover itself. This diagram should show you the location of the flasher relay.
3. Check online forums: Searching for "1996 Chevy S-10 flasher relay location" on forums dedicated to S-10s might reveal photos or further details from other owners who've tackled this.
Remember to disconnect your battery's negative terminal before working with any electrical components.