Going solo on naturist holidays
I went to a place in the South West of Portugal many times, always as a single male and always welcome. They arte now friends. They moved to the South of France and will be opening soon. Look up Carols Naturist Guest House.
I also went to Alicante Nudists, where I was welcome as a single male. The hostess was VERY welcoming.
I don't know how many feel like you. I agree she didn't have a pool and lawns burn off in the long hot dry summers of the Algarve. But I got a warm and sincere welcome, good food, as much beer or wine as I could drink and en-suit accommodation. I could walk naked from the guesthouse across country to two really good nude beaches with soft clean sand set in coves and backed by the cliffsof an interesting coastline. I was in the sea on Christmas day. With a longer (naked) walk I could reach a third nude beach. A further four were within a short drive. With such a choice of nude beaches I didn't need a pool. What's more I met lots of other nudists on those beaches.