In-person Spanish teachers are pretty affordable in many Spanish-speaking countries — in my experience, often around 20 USD / hour. I was in Argentina for three months this year and got one-on-one lessons for two hours a day for $800/month.

One-on-one lessons are super fun because you can do whatever sounds interesting to you, and doing it in a Spanish-speaking country means it’s automatically in the target language. I would get ice cream with my teacher, go for walks, watch movies, read short stories, listen to music, browse meme pages, etc.

They can also go with you to turn errands like renting a car into learning experiences, or help you specifically prepare for an errand you need to run.

Not to mention all the other benefits of immersion, and it gives you an excuse to travel.