Any basic cheese is good, I'd probably avoid unpasteurised or blue for a while but apart from that I think anything goes, we gave our son strong cheddar because that's what we eat and he loves it. Be aware that cheese has some salt in it but unless your baby suddenly starts by eating loads then it isn't a worry.
With yoghurt you need to avoid low-fat products as babies need the fat in their diets up until at least two or three years old. Apart from that, read the back of the packs and avoid high sugar brands or ones with lots of chemically sounding ingredients. We started with natural Greek yoghurt, it's lovely, no added sugar, and you have the choice to add your own fruit if you want. Flavoured yoghurts, even the 'baby' ones almost always have sugar added, plenty of babies have them but I avoided them until my son was about one and a half as I just don't think the added sugar in his diet is necessary.
Hope your baby enjoys!