Hive Librarian is an app I made almost a year ago and it has suite of tools that each Hive Bees should have in their toolbox. It also contains the best curating tool in the market and it is free. Hive Librarian is powered by HiveSQL and built using Streamlit. To start using the app, visit https://hivelibrarian.herokuapp.com. Make sure to bookmark it or you can always find it in my profile page.
The very first tool you can use in Hive Librarian is Conversations. Click the checkbox to see the input fields needed to be filled in to get the conversations. The idea is to get the historical Hive conversations in the comments between two users. The results will output all responses by Hive user-1 to Hive user-2.
It is useful when you trying to remember an answer to a question you asked in the past on Hive. You know the answer is there and who may have answered it, but it is not easy to find that information. For example, once I asked TheCallMeDan to explain Speak network coins in simpler terms and he did give a great answer. I don't remember the details. But since Speak network will be claim dropping some coins next month, I probably should revisit that comment to refresh my memory. And here is the answer.
Leaving user-2 input blank will display all the posts user-1 published on Hive. When you are curating and want to learn more about the user and what they have been posting, this feature can be useful. You could do the same thing by going to user's Hive blogs page. But they will only show the titles and thumbnails. With Hive Librarian you can see all the content open and scrolls through to see the full content of all posts. This can make curating more efficient.
Next is, Hive Rich List. As the name suggest, it can help sorting through all Hive accounts and listing accounts based on how much HP, liquid Hive or HBD, delegated HP, or funds in savings, etc. Then there is HP Delegations, that can show all the delegations sent or received by the account or only the active delegations. Try yourself, see who I am delegating HP to.
Dynamic Global Properties are there just to give some extra information. Most may not find it useful. Recently, I found out that HBD interest rate went up to 12%. By checking hbd_interest_rate we can confirm that is indeed the case. Having an easy access to see all dynamic global properties and their values from time to time can be useful too, I think.
And then there is the main feature of the App - Librarian Hive Search. Since it required more space for input fields, I had to make it as a separate app and only provide the link in the main app. Link is there if you click Hive Posts Search or you can visit the app directly here - https://hive-search.herokuapp.com.
Curation is alive and well on Hive. There are many who curate Hive posts on daily basis for various curation projects, tribes, communities. There are also many individual curators. Curating is a time consuming work and finding what you are looking for might not be a simple task. Many curators have developed their own methodologies to make this process more efficient. When I used to curate full time, I used to use HiveSQL. Even with that I would spend countless hours.
Librarian Hive Search can help you make this process easier for you too. I do use it myself. I still curate for Curie from my 
The app is not the most user friendly one. When you go to the page, things may seem confusing, and too many input fields available. But it works as intended. You may have to spend couple minutes to figure out what is what. I didn't get a chance to work more on it and improve UX. Simply because there weren't many using. If more people start using it and give feedback, I might get motivated to dedicate some time to add improvements. :)
Don't be confused with many input fields. You may not even use most of them. They are there just as options. If they left blank or with default values, it will not affect the results returned. Only focus on the things that you would like to sort by.
By default the results will return 10 posts, but that number can be increased up to 500. I could make that number even bigger, but 500 is a lot of posts already for any curator to deal with.
Dates and times are self-explanatory. By default, the results will return posts for the last seven days.
Apps used to post can be useful for those who would like to see posts only made by certain apps. Default value is all. I don't see proofobrain there. Making a mental note to POB.
External link - After results are returned, there is an option to visit the original post at the selected external link app/tribe. This will not work properly for Apps like DBUZZ, 3SPEAK, DPOLL and VIMM. Because formatting of links is in some of these apps is not same as with hive.blog or other condenser based apps. Hopefully, I will fix that in future. For now when one of these apps is selected, external link will default to hive.blog.
We can define min and max values for author reputation, length of the post by characters, pending payout, number of votes, number of comments, hive power. Default values for all are so that they include all posts.
Then there are include/exclude parameters for tags, authors, and voters. Most useful one is probably the tags. We can define as many tags as we like. They all need to be separate with space. There is an Any/All option as well. If Any is chosen it will return all posts if any of the tags appear in the post. If All is chosen then it will return if all tags are used in the post.
We can also sort posts by defining if certain word or words are in the title or the body of the post. The opposite can be done as well, if we don't want to see posts that contain certain words in the title or the body text.
Finally, the results can be displayed in two ways: title only or full content. Title only option is the default and works the best. This means the results will be a list of titles with some small details about the post. We can expand the post to see the full content by clicking the Show/Hive Content button for each post.
Give it a try, and see if this can help your curating activities on Hive. You don't need to use all of the parameters. Just change the ones you need. Usually, it will only be few of them.