I've been in the TR Price Spectrum Income fund for 10 years. Pays a consistent ~4% for the past 20 years.
Recently upped the ante to the TRP High Yield...~7.7% consistently for over 20 years...so good that they 've closed the fund last month.
YMMV but I've been very happy with both funds (tonight is dividend night!)
Note that these funds are not as safe as T bills etc, hence the higher yields, but my personal belief for myself is that the risk is low. Caveat emptor!
Living well is the best revenge!
Retired @ 52 in 2005