Seven letter words change one or two letter to make a new word

Skelton

Shelton

Ricky Van Shelton - Wikipedia

Stetson

stoners

moaners

anemone

demeans

Meanies

panties

painter

trainer

strains

sustain

instant

mansion

somniac

(Judges? What say you?)

amnesia

Siamese

“Somniac” works for me.

In play:

seeming

misting