Flexovit and Klingspor for grinding. Dronco ones seem to hold up ok for slitting.
Mostly I do my grinding with fibre discs unless I actually have to use a stone.
I'm also only dicking about in the garage.
I rarely use proper grinding discs any more, but flap discs instead, whichever seems a good deal off ebay in packs of 10.
But like the other two dickers above, I’m just a hobby dicker too.
Rarely ever use a grinding disc, flap discs and cutting wheels in my grinders. You shouldnt apply side loads to a cut disc but you can use it to make small precise cuts to get the same result.