Plentyoffish mostly stinks but still has a free tier where you can message one person a day.

Also, on the page where you look at people who have viewed/liked you, the photos are blurred but if you use the Web Developer Inspection Tool:

Right click on one of the images of who you want to see and click “Inspect”:

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From here, you can usually find them in your list of potential matches, in your “meet me” swipes, or in the recently online list. This way, if someone swipes right on you, you can find them without paying and can decide to match or message.

Cheers and good luck!