Are there any alternatives to TOAD tool for SQL Server? [closed]

Yes, there are some other great apps like Toad for SQL Server that you can go for like SQL Server Management Studio (Free), SQuirreL SQL (Free, Open Source), Database .NET (Free Personal) and Azure Data Studio (Free, Open Source).

Although the Navicat UI is more polished, the feature set and extensible nature of Apex SQLEdit blows the doors off any other QA replacement I've found. Between replacement tokens, context sensitive custom scripts (i.e., right click a table and you're presented with a list of your own CUSTOM scripts specific to TABLES with token replacement), quick info, data mining right out of the result grid, sorting and filtering in grid, etc., etc.

At that point, you may as well keep SSMS, add RedGate SQL prompt (nice) and/or SSMS Tools (free/donate) to get only a pinch of what Apex offers.

Note, I have, in no way, explored Navicat features completely, just blown away by the apparent LACK of features during my first experience with the tool, especially where the rubber meets the road, query building and result grid features.