It’s definitely a crapshoot a lot of times. But there’s usually at least one or two on there that are similar enough that I might genuinely be interested in it. You can also forcefully hide games from showing up in suggestions, iirc. I’ve never done it, but some of my friends have recommended doing so in order to make Steam dig deeper for finding lesser known stuff. I’m not that big of a connoisseur, though.

Edit:

I recalled correctly, and it seems they’ve even made the Ignore button a lot easier to find (or I just never noticed before):