Ideas below from Valueforum - investor who lives on his portfolio's income.
SLRC - BDC Business Development Company - Div 12.10% current price 19.96
DX - Mtg Reit
CIM - Mtg Reit 3.85 pays 18%
AGNC -

I am unsure of another mtg reit. Already have nly at 17.88 pays 15.40 %

STON 9.8% 22.82 seems a little pricy at 22.82 (close to 52 week high)