"suitable alliance" is correct and usable in written English.
You can use it to refer to an agreement between two people or groups that is beneficial to both. For example, "The two countries formed a suitable alliance that would benefit both economically and politically."
In the 15th century, when the greatest importance was attached to suitable marital alliances between Florence's wealthiest families, the cassone reached great heights of artistic achievement.
However, the selection of a suitable partner for strategic alliance is not an easy decision, involving a host of complex considerations.
These evidences highlight the importance of designing a suitable portfolio of R&D alliances in order to develop different innovative capabilities.
This research paper proposes the utilization of the fundamental principles encompassed in the fuzzy set theory to analyze and consider a multiplicity of complex criteria and determines the most suitable partner in strategic shipping alliances.
While MoveOn.org has been publicly railing against Facebook's user privacy missteps over the last month, its new ties to Chris Kelly have angered some supporters who do not find this alliance with Kelly to be suitable to the progressive movement generally due to Kelly's history with user rights.
The group which brought the challenge, the Plantagenet Alliance, claimed York was a more suitable location for Richard's remains as he had spent his childhood and much of his adult life in the North.
He attended all the important weddings — and never mind that, by his admission, he'd practically been dragged to his own; the bride was a suitable Bordeaux girl named Françoise de la Chassaigne and the alliance more or less arranged.
The company has tried to beef up its drug division through alliances with biotechnology firms, and is keen to find a suitable merger partner a tough task since there are few firms of similar size left.
Toward the goal of eliminating lead in paints by 2020, alliance members raise public awareness, encourage governments to pass regulations, and educate paint companies about suitable alternatives to lead.
Hastings proposed an alliance.
