In my lab I have a few packs of RELIFE solder lugs.

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If you want to buy, see here:

Vendor	Product
eBay USA	1400pc RELIFE Dot Repairing Solder Lug Spot Soldering Pad RL-007GA Trace for PCB

Documentation

I keep my documentation for this equipment here:

These things are tiny and I haven't figured out how to use them yet. I learned about these in a video from Learn Electronics Repair.

RELIFE Dot Repairing Solder Lug Spot Soldering Pad RL-007GA for iPhone Welding Board Flywire Replacement IC Repair Fix 1400 Dots.

Item is “Brand New” sent with Australia Post Regular Letter., NO TRACKING

Description:

Pure copper no looping repair spot welding slice, fast patching.

6 styles and 1400 pcs point ,Suitable for mobile phone pads of different sizes.

Great for all types of circuit board damage.

Conventional, BGA, SMT.