Old school soul songs to put a smile on anyones face

Hello all
I'm looking for suggestions on songs with a slow but stead beat that make your soul feel glad... Ones that kinda have the same feel such as:

"happy feelings" maze ft. frankie beverly
"heaven must be like this" ohio players
"way of the world" earth wind and fire

Thanks

Summer Breeze -Isley Brothers

O'Jays -Backstabbers

Chi -Lites -Give more power to the people

The Spinners -It's a shame

Dennis Edwards ft.Siedah Garret - Don't look any further

Marvin Gaye !!

Al Green -Take me to the river