The best alternatives to Gillette On Demand are Oui Shave, Dollar Shave Club, and Flamingo. If these 3 options don't work for you, we've listed a few more alternatives below.
Flamingo is a up-start out of Harry's razors taking claim of women's grooming. I've avoided the pink tax for a few years by creating a Harry's account for myself after I noticed the high quality of my husband's Harry's razors and the convenience of a subscription. Props to the creative direction on this one too-- its modern and not too "pink."