Advice on finding a kitten a home

I found a kitten in a parking lot a month ago and immediately started contacting rescues in my area but they either ghosted me or said they wouldn’t take him if I didn’t give them hundreds of dollars. There is a pretty big no-kill shelter near me that will only take him if I give them a lot of money as well. I asked everyone I know and asked them to ask anyone they know if someone will give him a forever home. I even called a couple of vets for advice but they were more annoyed than anything. My last ditch effort was to go on nextdoor but that was a total bust. I’m kinda scared of taking him to the regular shelter for obvious reasons, but I might be worried for no good reason. And I totally get why some places are asking for all that money and vet bills, but I’m just the sucker that plucked him off the supermarket pavement. I’m not some kitten abandoning brokie that wants to leave a cat in a box. I just don’t know what else to do that would still ensure he lives a long happy life with a forever family that isn’t going to cost me a month’s worth of groceries. Any advice at all would be appreciated.