They're both some sort of mbuna. I guessed red top because they look a bit like that. I think red tops have some red, but if they're new then they might be shy and pale.
There are many brownish metriaclima, and that little black spot on each side, plus the shape, is a pretty good sign that I have at least given you a starting point.
Google metriaclima, and see if you find something that looks like it. Use those names to look at the fish profiles here, that should get you a start.
For the second one a better picture is sort of essential. You get so many different kinds of blue barred ones.
Maybe give us their sizes as well?