安くて安全なお勧めのホテルを教えてくださいって英語でなんて言うの？

to "spot" means to find so you can use it with anything your looking for.

"Where can I spot a comfortable and inexpensive hotel?"

"Inexpensive" just means cheap.
But we use the word cheap and affordable most of the time.

"Where can I spot an affordable restaurant with good food?"

You could also ask "Do you know〇〇?" anytime you're looking for something too.

"Do you know any good and cheap restaurants around here?"
"Do you know any reliable and reasonably priced hotels around here?"
"Do you know any safe areas that have cheap hotels?"

Sometimes if you ask for a "cheap" hotel you may end up with a hotel that is not well taken care of.
Depending on which country you are travelling in, the word cheap may denote an unclean and undesirable place to stay, even if it is safe.
Using the words low-cost or low-priced is another option.

If you are looking for accommodations that are affordable using the word hotel may limit your options.
A cheap hotel may be higher in cost than a motel or hostel, which may be just as clean and safe as a hotel.

Asking for a highly rated hotel that is cheap and safe will ensure the quality is decent and it also indicates that many people have stayed there and were satisfied with the hotel.

When you say reasonably priced, you are telling the person that you do not want an expensive place, neither do you want a cheap place that is not recommended.
When you mention that a person can be able to get you a place that is recommended and not expensive at the same time.

A budget hotel = a hotel that charges less than average for its rooms.
A: " I'm looking for a safe and cheap hotel. Could you advise me please?"
B: " I'm sorry, I don't have any ideas....but i think there may be a budget hotel at the end of the street."
A: "OK, thanks for your help!"

"Affordable" means that it is not too expensive
"Well-priced" again, not too expensive
"Decent" safe and clean environment

"Do you know of any inexpensive and safe hotels around here?"
This question works best if you are looking for a cheap and safe hotel in the immediate area/an area not far from where you are when the question is asked.

A shoe string budget refers to a low cost budget.
Low cost hotels in safe areas are sought out by many travelers abroad
As a tourist I would rather opt for a low cost hotel in a safe area.

"Could you recommend a reasonable hotel?"
"Reasonable" Means good quality for good money not expensive.

"Can you recommend a hotel that is cheap and safe? "
This asks them t tell you where you can find a good hotel.

A cheap hotel that is also safe may be hard to find if you are stranger to an area. However, someone who knows the area, especially a tourist guide who knows the area well may be able to recommend one to you. Tourist guides, because of the nature of their jobs, know the areas in which they operate very well.
So, you may ask as follows:
Can you recommend to me a cheap hotel that is also safe?
or
I am looking for a cheap and extremely safe hotel. Can you recommend one to me please?
or
Is there a relatively cheap and safe hotel near here that you can recommend to me?