I have to make a point to point radio link between two remote sites I need to make a link that has at least 50Mbps of trougphut what do you recommend?

what is the distance? do you have clear LOS?

The distance is 25km and there is sight.

If i were you, i will install RB411AH, R52Hn and 2 high gain 5ghz antennas per site.
Using N and Mimo you can reach really high throughput.