I used Balega for a while, nice but a bit too loose after a season of washings--kind of thick too (the ones I had). Then I used Feetures...they are too compressive in that my toes get squished together and in hot conditions I get heat friction blisters. Then I started using Swiftwick, which I currently consider my absolute favorite of all time. I will continue to use them until I have found something better. The "toe socks" Injini or whatever, I have some but really take too long to put on in transition. Maybe a Swim-Run race I'd use them but aside from that, usually not.

I've lately (since pandemic started) been buying Zeffz socks. Cheap (with coupon code), nice designs and good quality. But obviously mostly for Australian customers. https://www.zeffz.com.au/