What do y’all  know about these guys? I know they followed Bp. Williamson and the Resistance, but to what degree are they anti-SSPX? Could an SSPX sympathizer become a postulant with them? I sent them a short email message but haven’t gotten a reply yet. Is that the best way to contact them?

They have a regular online presence including an English-language blog, so I suspect you'll get a timely reply.
I don't know why such an anti-Resistance person would be interested in a Resistance-minded religious order, though.

I’m not anti-Resistance.( in the sense that I have no hostility or animosity towards anyone in the Resistance) I do think the Resistance over reacts to small things and that Bp. Williamson and the rest left the Society for no good reason. I am hostile to some who gossip and lie about things that are going on in the Society. We must focus on the reality and avoid speculation. That being said,  I am on very good terms with Fr. Ortiz and have gladly attended his Masses.( and will continue to)
The Society has no Dominican community and I have not found any other Traditional Dominican communities that reject Vatican 2. Avrille seems to be the only option for a traditionally minded man who wants to consider becoming a Dominican friar. 

If you haven't read their blog, you should. There's lots of material there including their positions on SSPX vs. Resistance. You can also find some of the Resistance-specific writings on this site.
While individual laity are of course prone to a variety of reactions to events in the SSPX, that's not really the case with the bishops and priests. If you read the Dominican's own writings and still think they had no valid reason to cut ties with the Society, you probably wouldn't consider their community a good option.

I just looked at their post entitled “The Friary’s Position” I don’t disagree with any of it. There are 2 parts in the post that might be relevant to this discussion.
They say
“The Appeal to the faithful of January 2014 was not a declaration of rupture with the SSPX, but a “public testimony of our firm and faithful attachment to the principles that always guided Archbishop Lefebvre in the combat for the Faith”
2. ‘



From this it seems that they would not be hostile to one who is on the “conservative” wing of the SSPX( which I am ) I’ve contacted them and will see what they say.

You certainly don't have to be an SSPX-hater. We have a young person in this area who just visited Avrille for a few weeks to explore a possible vocation. He attends SSPX Masses as well as Resistance Masses.
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Understanding the Archbishop's original positions and how the SSPX has deviated from that necessarily puts the Dominicans apart from the SSPX, but that doesn't eliminate the possibility that the SSPX will eventually realign itself with what it once was.
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In the meantime, though, the Dominicans are the "manpower" behind one of the few Resistance seminaries as well as providing retreats, Masses, etc. for the Resistance.

“A suggestion for those who want to remain faithful to the combat of Archbishop Lefebvre; to the word “resistance”, we prefer the expression “combat for the faith” not only because one does not define oneself by something negative: but because this expression exists since the beginning of Tradition, and includes all those who faithfully continue the combat of Archbishop Lefebvre, no matter what organization they belong to.”

Bishop W did not leave the Society. My understanding is that he was unjustly disowned by them.
You seem to be misinformed as to the nature of the SSPX. The SSPX is just an "independent" body of priests, brothers and nuns and have no right to set up a community of Dominicans or any other of the Orders.

Bp. Williamson was asked numerous times to stop attacking his superiors and did the exact opposite. He had his chance and made his choice( effectively “leaving” as it were) being booted out was a consequence of his rash choices. 

Banezian can't shake our perception that's he's a neo-SSPX cheerleader trying to wiggle into the traditional Catholic resistance.  

Neo-SSPX marranos should be taken to the stake :heretic:

“Neo-SSPX” is a myth. In what sense am I a Modernist? I follow Augustine and St. Thomas very closely. Fr. Garrigou-Lagrange is the only Modern I read