Personally, I drop the financial sector entirely (Thomistic prohibitions on usury) which leaves an even 10 funds which is easy to allocate mentally and in practice. For example, assuming a 60/40 allocation where one is holding the lion’s share in equities and the remainder in bonds (I substitute with a combination of gold, crypto, cash, and Swiss Franc here), one would allocate as follows:
XLC 6% XLY 6% XLP 6% XLE 6% XLV 6% XLI 6% XLB 6% XLK 6% XLU 6% XLRE 6%
(Note that XLF is consciously not taken as a position here, decide if it’s right for you. The Mortgate REITs which would make XLRE problematic are in XLF per the sector selection rules)
The remaining 40% is bonded debt if you are fine with usury, or some sort of asset negatively or neutrally correlated to equities.