I use several depending on the device. On my phone I use Olive Tree. It has a format that I can easily use. Specifically, I use the Strongs links Bible there. It only opens a pop-up and doesn’t stray from the text I’m reading.
I have another form Bible Apps Lab LLC. I do like this one because it has a split screen that will follow along with your commentary as you go. Down side is that sometimes I don’t want it to lose my commentary place when I go back to reread the Scripture.
On my computer (windows) I also Tree but I don’t like the format on the desktop.
I have used Online Bible, E-sword, and Blue Letter Bible before.
Currently I use SwordSearcher. It is not free but has an incredible amount of library that comes with it. It is definitely worth the price. The layout is able to be customized. There is a free trial version available. It is worth checking out.
I am not always online, so BLB is not really a good option for me. It is a great resource to be able to share.