What are current best practices to share contacts in a small company?

DanHuber Im facing almost the same issue. a group of 5 users need to acess and colaborate on a shared contact list somewhere, mainly through outlook. Nowadays we have a user(a made up one, we call it BCM) with a license(thats expensive) sharing its contacts to everyone else and everyone is acessing it thorugh outlook. But we have some problems with that solution beacause the new search bar in new outlook. We can´t properly search about the contacts. But I want to move to a contact list library in sharepoint. (To get everything to one place, we already have the documents in sharepoint) Everything works perfect on tyhe computer, in outlook and we can search but I can´t acess the contact in our mobile phones and that´s a dealbreaker so until we find a solution to get the contacts to work on ios we just stick with the solution we have since it works on phone but its not the intended use)  we tested business central but it was to much and to big for our little company. But business central have a tab in your contacts in ios contact app. We where so close to the finish line with that solution.