UkeAbility has a nice twist on the standard playalong site!
You’re presented with a page of chord diagrams. Click to select the chords you know & you’ll be given a list of the tunes they have containing just those ones.
It’s interesting to look through & note which chords you can play without any thought – & likely to be far more that you expected! Scan through a second time: you’ll spot chords you do actually know, either through using them in context in a song you perform regularly or just ones you use occasionally & might need a little memory jog to recall.
Also, most of the moveable chords aren’t on there so, once you’re able to use those, that increases your repertoire up the fretboard giving you new voicings for familiar chords. Thus, if you know three ways to play C that gives you an even larger number of chords at your fingertips.