Grammar fix

highly recommended

strongly suggested

Used to say that something or someone is strongly suggested because it is very good or useful.

collocationB1common

Hear it in context

Notice where the phrase sounds natural.

The new Italian restaurant in town is highly recommended by many people.daily life
If you visit my city, the art museum is highly recommended because it has amazing exhibitions all year round.IELTS speaking

Pattern: be highly recommended (for/by/to someone)

WrongThis place is high recommended.

RightThis place is highly recommended.

'Highly' (adverb), not 'high'.

Patternbe highly recommended (for/by/to someone)

Choose the version that sounds natural in speech.

Stiff This establishment comes with my strongest endorsement.

Natural It's highly recommended.

'Highly recommended' is the everyday phrase; 'strongest endorsement' is formal.

Words that usually travel with it.

'Recommended' is weaker; 'highly recommended' shows much stronger approval.