The phrase "a good link" is correct and usable in written English.
It can be used when referring to a connection or relationship that is beneficial or effective, often in the context of networking or resources.
Example: "This article provides a good link to further information on the topic."
Alternatives: "a valuable connection" or "an effective resource".
Britain has plenty of successful, dynamic immigrants from India who provide a good link to the country they left behind.
I'm sure Treviso will be very competitive on Saturday; with Alessandro Troncon, Franco Smith and Marius Goosen they have a good link out into the backs".
A good link state QoS routing method should efficiently utilise networking resources and should incur little overhead in spreading information about resource availability.
(1) The volatility of the network evolution can be effectively reflected on the similarity index corresponding to a good link prediction performance.
If REDD+ policies involve a large part of a county's forested area, establishing a good link to the general forest and other sector policies will be necessary.
"It's a good link with Fulham.
"He's a threat, he's a goal scorer, a good link-up player," said Solskjaer.
Clarke played in a front three with Tyrone Barnett and Sanchez Watt against the Robins, and he is looking forward to forging a good link-up with them.
Ideally, it is desirable that for a historically good link (i.e., connected frequently on a longer time scale), should increase fast and decrease slowly, and for a historically bad link, it should increase slowly and decrease fast.
"We have a very good link with the seniors but for some slow progress will be better for the long term.
In addition, they also thought the TRM would have a '… good link with appraisal and revalidation…' To our knowledge, this was the first attempt to pilot TRM in the GP specialty training environment and to assess its potential as an educational and improvement intervention.
