Thanks for you responses. It was very helpful.
I did continue my online search and found this link. Wealthfront published a white paper with their tax- loss harvesting strategy. They list the ETFs they use. I am hoping they have the expertise to have evaluated the IRS tax consequences.
Coincidentally, their primary portfolio recommendation for international is VEA. Their tax loss harvesting suggestion is SCHF. It is a slightly lower cost than VXUS but negligible. I have not completed my research but will decide between those two.
BTW, I have digested the Kool-aid and plan to ride the highs & lows. I am not timing the market as I will be replacing my ETF with a similar but different enough profile. I will follow the Wealthfront approach of switching back to VEA at some point after the 30 day period.
Here is the link if you are interested
https://research.wealthfront.com/whi...-harvesting/**