Thank You

I am new to the forum and would like to thank you all for your contributions. I have been reading for days in my brief moments of spare time, trying to become more informed about lace wigs. I have telogen effluvium and will be venturing into the world of wigs. There is so much for me to learn and this forum is a great resource. I have a question regarding density on a chinese yaki or light yaki. Prior to my alopecia issues when my hair was relaxed it was full with great body (people would assume I had a weave). I am looking to purchase a unit that mirrors that. What in terms of density should I be requesting?