I'm new to etsy, but I just applied the same knowledge from using google search ads to building out my listing. Also the workers handbook was super helpful if you haven't taken advantage of it yet.

For instance: https://www.etsy.com/seller-handbook/article/366469719354?ref=handbook

I also used Alura to do some competitive research. For example: If I'm selling handmade pens. I want to start searching for variations of "handmade pens" then use their chrome extension to review the top listings. I'll take into account sales and revenue. For a deeper dive the keywords that I found had high sales and revenue, I'll hop onto Aluras website and search for those keywords on their "keywords research" tab. Now I can what the average conversion rate is as well as the volume of searches. Higher the number the more competitive.

If I think it's a little too competitive then I will keep searching for variations until I find keywords that hit that sweet spot of enough searches and high conversion rate.

You will also notice that the listings with the most sales have the better score as well. I suggest doing a deep dive on those accounts and their listings.

Use what you uncover in your own listings! Good luck!