ITDB
iShares LifePath Target Date 2030 ETF
stockNYSEETF

First, I'll say I think VT is a great hold in a taxable account and I'm not trying to convince you otherwise. However, if you prefer a TDF, you could look at the iShares LifePath ETF series. They are very tax-efficient (for a TDF). Their 2030 fund, ITDB, is 30% bonds, yields under 3% currently, and has never had a capital gains distribution as far as I know. They are also just an excellent choice overall, IMO -- low cost index funds that appear to be solidly run and strong performers in the field.