Look for local YouTubers. It is hard to search for them (usually) but once you find one, they tend to know other local YouTubers. Them being local means it is no biggie for them to do a collab with you. Even MASSIVE channels will collab with a just-starting-out local YouTuber. As for finding them, go to your local camera shop and talk to them. Possibly put up a small poster on their bulletin board seeking collabs. You might even be able to interest the camera shop in starting a weekly support group for YouTubers. The shop will view it as a way of selling equipment. Collab with everyone there. It doesn't matter what your channels are about. Appear on theirs doing their thing and they doing likewise on yours. For example, if they're a beauty channel, let her slap make-up on you while you talk about your channel. She then does the same on your channel. If yours is a gaming channel, she games with you while you to talk about her channel.