The Small Ripple is a great first plug. Its graduated design is starter size (smaller than a finger tip to start, and 1" across at its widest bulb), and because it's Tantus 100% ultra-premium platinum silicone, you know it's usable, cleanable, and safe.
One of the favorites in the toy drawer! Ripple Small is perfect for starting out, as the first two 'beads' are quite small. The final bead isn't too aggressive, and this is a harness-able plug!
Wife also enjoys it, so its one you can share (get two or remember to keep them sanitary...Tantus silicone is dishwasher safe!)