Right now, I’ve a tube of Yamachu in the fridge. I’ve used S&B in the past. To be honest, I didn’t compare them side by side, and didn’t find a big difference. Try to find one made in Japan than a Western brand. One tube lasts forever in the fridge, so choose a good one. Paste is better than powder. That say, I like fresh wasashi much more, less imposing and more fragrances.
Here is a link that might help.
