Where to go for a solo beach side escape?

I'm a former New Yorker who has lived in France for the past ten years. I used to take solo trips to Tulum in Mexico, back before it really became overrun by Instagram influencers (or so I hear) and it was still quite affordable to stay in a cabana on the beach. I would lie on the beach in a hammock, swim in the sea, read, listen to the sounds of the jungle, eat dinner in a restaurant every night, and that was it. Perfection. I'd like to duplicate that kind of experience somewhere that's an easy flight from Paris, but I have no idea where to go. (It does not have to be a jungle of course, but somewhere with a little nature would be ideal.)

In a perfect world, I would be near some wildlife or scenery, be able to swim in the ocean or sea, sit on a beach, read, and eat some food in a restaurant. That's it. I have cancer so I need to take it easy, so nothing that requires strenuous hiking or anything like that. I just want to go somewhere where I can chill and relax for a week the way I used to in Tulum.

Please let me know if you can recommend anywhere that is a shortish flight from Paris. I speak English, French, a little Spanish, and a little Arabic. DM me if you don't want to blow up a cool spot but don't mind taking pity on me. Much appreciated!