This is the only hydroxiapatite toothpaste available in Portugal and I quite like it. It's affordable, refreshing and seems to reduce sensitivity:
https://jardimsuspenso.com/en/made-in-portugal/193-couto-toothpaste-60g-5601331001022.html
Ingredients: Aqua, Hydroxyapatite, Glycerin, Potassium Chlorate, Hydroxyethylcellulose, Sodium C12-18 Alkyl Sulfate, Mentha Piperita, Menthol, Paraffinum Líquidum, Anethol, Sodium Saccharin, Thymol, Eugenol and Limonene.