There are some really good erotic massage studios in Lisbon, amongst a few, which seem to be a front for brothels. Jardim do Edén (http://www.jardim-do-eden.com/pt/) at Ave Joao XXI 43 is widely known as one of those spots. Some salons disclose their physical address only via WhatsApp, and they’re usually up for both incall and outcall massage services.
Massagens em Lisboa (https://www.massagemlisboa.com/) at Av. Fontes Pereira de Melo 31 is a genuine tantric massage parlor. They might tend to be a bit on the higher-end side of the market but a handjob finish is definitely on the menu. An hour of sensual massage will cost you around €100 in most salons in Lisbon.