second rabbit question

If I decide to get a second rabbit as a companion for my male, unneutered, 8 week old rabbit, should I wait until I have had him neutered first before introducing a partner. Should both rabbits be neutered/spayed first before meeting?

Put simply, yes and yes!
Its much simpler that way and more likely to be successful, and much lower risk of injury etc
People have bonded neutered males with unneutered females (as they have to be older to be neutered) but if there is no urgency its better to wait

Yes you will need to wait until your rabbit is neutered. It is best to go to a rescue for a second bunny as they will be able to help you pair your bunny with a suitable neutered partner .