In looking back, I personally have found the best connections through P411.   Before I bailed out of this hobby for 8 years, I relied on TER as a good starting point, but since my return in late 2017 I use P411 for availability and TER for reviews.  It’s only been a few months, and I have been scammed once, but this seems the most reliable.  

Slixa which you already have , just make sure your schedule is there.

It'll be mid/end of April

xo