How about a small Clear Quartz Generator that has such clarity and soft mists? They are wonderful quality. Would be lovely to have in your collection. Hold it to give you a hand and delight you when you want to expand. This is the largest one I have left and I have not seen any similar at local suppliers. Covid has played havoc.
This crystal is great for releasing distractions and bringing in spiritual peace. I have had customers also reporting improvements in concentration and memory. Said to also stimulate the immune system. Read more about the shape.
We have larger generators like this too or look at similar sized pyramids. You will get one of these in the photo. We will intuit which of these smaller clear quartz generators meets your needs!