What are the shirts you’re wearing?
Discussion
I've bought a handful of name brand sweaters off of ebay for like $30-40 that are 100% wool (makes sure you get pics of the sizing. Used stuff can be weird sizes if shrunk). An Aran cable knits, a jcrew. I've got some meriwool off Amazon that I like as a baselayer (animal smelling when brand new). I've got a boiled wool hat from New Zealand and a few Filson pieces. I haven't been brave enough to try 100% wool undergarments so I usually go with smartwool, which is a wool blend but a lot more durable. My bedding is wool now too.
I’m slowly shifting away from fiat clothes(and everything else) replacing worn out stuff and wool seems better, but im still less familiar w care. I love my button ups but haven’t got into base layers yet
I would say start with some high wool fabric content blends from brands you trust. Most brands have a wool blend shirt of one kind or another. In my experience, items with more than 50%wool get a lot of the properties of wool and they are a little more durable and washable. Wool care is learning curve for sure. My 100% wool pieces, I don't wash often. When I do, I'll usually spot wash or hand wash and air dry.
*merino.tech (on amazon)