As Pat said, I can also vouch for https://www.shopndropgrocerystbarts.com/

Jeannie is matching up donated grocery vouchers with either families or organizations YOU designate (I sent mine to the I CAN FOUNDATION HOME) or if undesignated they will go to families in need as identified by a team of respected, local ladies who have reached out to a variety of LOCAL groups, churches, etc. to identify potential recipients or you could also designate that your voucher go to the school breakfast program.