I do exactly that – hit some fast Megaways slots for the thrill then chill with live tables when I want something more social. No major lag on most decent mobile sites anymore, especially the ones optimized properly. For bonuses that cover both, check out places with solid welcome packages and free spins plus live cashback deals. One I keep going back to has great variety and doesn't screw you on the wagering when you mix game types. Worth a look here: Mymobicasino – their reviews break it all down nicely for Canadian players. Saves a ton of trial and error. Have fun and don't go too wild haha!

Hey mate, I feel your pain – that registration nonsense kills the vibe every time.
These days one of the better no-strings options I've stuck with is easyplay.vegas – they've got a pretty big free play slots section with zero signup required, you just load the page and start spinning. Decent mix too, from classic Vegas-style ones to some newer themed games with solid animations. No malware crap or endless ads popping every spin either.
Give it a go if you're after quick casual play without handing over your soul lol. What games are you hunting for specifically? Might have more suggestions.