I'm not sure I can actually do justice to a top 10 this year, but I think I can come up with 5 albums I really love. I'll also toss a link to at least one song from each!
5) Swallow the Sun - When a Shadow is Forced into the Light
This is a really powerful Doom album written after/about the death of one of the band members' partners. Mixed harsh and clean vocals (going to be a trend here!) for people who are put off by that, but this trends more towards cleans and I think the emotions come through whether you like the occasional screams or not.
4) Fleshgod Apocalypse - Veleno
Symphonic Technical Death Metal, so if you don't like harsh vocals and/or don't appreciate instruments played very fast (and very well!), you can skip this. That said, with a name like that, how can you not want to check them out? I've never heard anyone approach metal the way these guys do, and the layering and contrasts between the orchestra, the more standard metal instrumentation, the harsh and clean (and occasionally operatic) vocals let them accomplish things that I don't hear anywhere else. I'm not sure this is the best music they've released, but it's definitely the most consistent album from start to finish.
3) Allegaeon - Apoptosis
Technical Death Metal again, but of a more standard kind. If you can't handle harsh vocals, you won't like this. I first learned about these guys when they opened for Ne Obliviscaris for their 2017 North American tour, and I enjoyed them well enough but I wasn't blown away. This album goes a long way towards earning them a regular spot in my playlists. They don't do anything particularly unique, but they're getting really good at what they do.
2) Cult of Luna - A Dawn to Fear
I don't know if this is my favourite post-metal album of all time, but it's definitely in contention. The mix is beautiful, all the instruments get to shine, and the vocals (harsh, sorry!) add a layer to the sound that I think would be lacking without them. This album came out very shortly after Tool's release and ended up completely blowing it out of the water, at least for me.
1) Jinjer - Macro (and the Micro LP from January, as a bonus!)
I absolutely love everything this band does, so it was almost a foregone conclusion that they'd top my list (I think a new Ne Obliviscaris album might be the only thing that could beat them out, and they've been busy touring). Everyone in the band is top notch, they give everyone a chance to show off from time to time, and I love the area they've found between Djent and groove metal. I already linked a song from Macro, so here's one from Micro!
And now that I've sat down and done this, I see that there are some more albums I need to check out (Russian Circles) or spend more time with (Devin Townsend), plus a bunch that I haven't listened to at all from various year-end lists. I'll check back if anything stands out!