>>60772413
>Lisbon anon wasn't larping
How good is your conversational English? Have you considered getting into tourguiding as a weekend gig? One tip from an American tourist could feed you for a week. Put a couple hundred bucks in a nice looking website and targeted advertising to get things rolling, maybe bribe a concierge at a mid-range hotel to take on flyers. Charge $50-100 per person, keep the groups small for an exclusive feel. If you don't feel confident in your writing, have GPT whip up some tidbits for each cultural site and plan the route. Add a cheap admission site to the tour and incorporate the cost as an 'inclusive' into your charge. At the end of the tour, suggest a good local restaurant for dinner and conversation as an optional. After making it a regular occasion, you can work out a fee deal with the restaurant owners to boost your margin.
In my country you'd need a bunch of licensing and insurance so it's not even worth the try, but in Portugal it's probably worth a shot, specially given your salary. WAGMI.