Subject: Re: o/t, but it has been discussed here
Mid-cap trackers are still cap-weighted, but have a more even spread than the large-caps. IVOO (S&P 400) has largest holding of ~1%, compared to ~8% in the S&P500.

You could name a broker (or a shortlist)
1/3 in each of QQQ/QQQE (or some other tech thing), IVOO and VTIP
Sell some of the largest holding each year to top up the income.

SA