As an LOTH addict, I should really say that an online guide is not nearly as good as an Ordo for your diocese or country. Ordos however come in paper format. Your nearest Catholic store should have it.
I think anyone, clergy, religious, or laity who prays the Hours should always have the local Ordo if any at all, and perhaps the St Joseph guide as a secondary guide. This allows you to easily pray local feasts and memorials, and spot stuff you otherwise won’t know about.
For example, you’re supposed to pray the Office as a Feast (or a Solemnity in the church itself) on the anniversary of your Cathedral’s dedication, from the Common of a Dedication of a Church, which you’ll never figure out from an online source. Your Ordo will tell you that though.
Here is a web site that has the guide for the four volume set that is posted month by month. The only draw back whichis minor is that if the last or first day of the month falls on a weekend the new month is usually posted a day or two late or on the first business day of the month. Hope this helps you out:thumbsup: