The best kind of pollinator friendly plants are the ones which have flat open flowers avoiding ones which have double flowers.  The following are just some which the pollinators will love

Actaea

Antirrhinum

Aster

Cirsium

Delphinium 

Echinops

Epilobium

Eryngium

Eupatorium

Geraniums, but again not double flowered ones

Geum

Helenium

Heliopsis

Impatiens

Kniphofia

Linaria

Monarda

Nepeta

Penstemon

Romneya coulteri

Salvia 

Sedum

Verbena

Veronicastrum