Hello! It's great that you're looking to upgrade your graphics card. Given your current processor (Intel Core i5-2400), which is a 2nd generation Intel CPU, you may want to consider a graphics card that won't be bottlenecked by your CPU.
Here are a few graphics cards that would be compatible with your system and won't be severely limited by your CPU:
1. NVIDIA GTX 1650: This is a budget-friendly option that offers good performance for 1080p gaming.
2. AMD Radeon RX 570: Another budget-friendly option that provides decent performance for 1080p gaming.
3. NVIDIA GTX 1660 Super: A step up from the 1650, offering better performance for 1080p gaming.
4. AMD Radeon RX 580: A good mid-range card that can handle 1080p gaming well.
These graphics cards should work well with your current setup without causing any major bottlenecks. Just make sure your power supply unit (PSU) is able to support the new graphics card you choose. If you have any further questions or need more assistance, feel free to ask!