Well, iFixit offers quite a few tools that were specifically designed to repair electronics. I would recommend the Pro Tech Base Toolkit, as it has all the screwdrivers, prying tools, and suction cups you would need for iPhone repair.
The industry standard for electronics and computer repair technicians and businesses. All the tools needed to repair iPhones, iPads, smartphones, tablets, Mac laptops, PCs, and video game consoles. — 50+ available at 64.95 each.