I've decided to check out Pokemon Quest. Its actually pretty fun. I got lucky and friended a porygon lv.14
I played it for a while, I think I put a good 10 hours into it. I eventually got tired of sacrificing Pokemon just to level up another though, and repeating the same high level areas over and over and over. Not a bad time waster though, it would be better on a phone rather than the Switch (not sure why they put it on Switch first, really). I ended up going back to Pokemon Go since they implemented gifts and me and a couple friends of mine send each other gifts daily so that's pretty cool. It'll keep me tied over until Let's Go (buddy's getting Pikachu, I'm getting Eevee), and then I'll be able to transfer my Go Pokemon to Let's Go. I don't mess with the gyms in Go whatsoever but I have several strong creatures ready to go!
I'm really excited to see what they do with gen 8 though. They have so many Pokemon and so many clones that I hope they're working with some really fresh new ideas for the series' proper debut on Switch. Although I still expect 70-100 brand new Pokemon, with even more Spearow and Pikachu clones...