gpu blocking slot

Motherboard: B450M DS3h GPU: MSI Armor RX 270 8GB So, on my motherboard there are 3 PCIe slots. An x16, x1, and x4. My GPU is in the x16 one, blocking the x1 which is right under. Then, my WiFi card is in the bottom slot (x4). I was wanting to get an SSD upgrade but not knowing where I can put...