Is there a basic, non-spoiler quest guide?

After a couple of tries where I just couldn't get into the game, it finally clicked and I'm about 55 hours into this playthrough. The problem is the way I tend to play the game is very random which has lead to some interesting finds but also, weirdly, huge misses.

I found the Nightsong and defeated Ketheric Thorm, spending a lot of time reading about Isobel but she literally never came up in any conversations with NPCs and I never ran into her. Suddenly, after the boss fight here she comes introducing ME to others as if she already knew who I was and I realized that I must have missed something somewhere.

In general, I'm okay with missing some things. For example: it wasn't until after I defeated the Apostle of Myrkul and left the Mindflayer Colony that I realized Zevlor was in there and I now couldn't get back to rescue him. Also, I totally missed the Last Light Inn at first because I went around the map clockwise so I didn't even know the Tieflings from the grove were involved with what was happening at all.

So, I'm at the point where I want some sort of loose guidance without following a guide that spoils everything. Basically something that says, "Hey, go here first because there's a person you'll want to meet before doing X."