Hi there and welcome to the forums!
I've never really paid attention to what temp German Blue Rams (GBRs (aka blue rams I'm assuming)) like. I don't actually know but I would have thought it couldn't be anything that wouldn't be fine for zebra danios. Danios are one of the universal common fish in the industry and fit in with almost any community tank. As such, and in a nice roomy tank like you have, your choices are still pretty wide open at this point.
I see from the other thread that Curiosity has talked to you and you're now waiting for a real test kit and then will be able to actively control your fish-in cycling situation. That should give you at least a month of testing, water changing and chatting on here to be figuring out your stocking plans and its great that you've already started!
The way the stocking planning usually works is that you just have to gather ideas of fish you think you'd like by ether seeing them in a shop or from internet pictures or books or local fish society meetings and then add those ideas here like you've begun doing. Suggesting specific fish will often result in them being "shot down" for one reason or another, but it seems to work much better than trying to get others to suggest them to you, although sometimes you luck into that too.
Some of the things to be covering in stocking plans are.. the overall stocking limits of your tank and situation, the limits on individual species that the tank volume and shape puts on you, the minimum shoal sizes for various fish, the compatibility of different members of the community, the best male/female ratios for some of the species sets you acquire.. and, even kind of outside that, the overall look of the aquatic scene you ultimately want to produce, because filling the tank up with the greatest possible loading is "particular" type of look and not necessarily the most desirable in all cases but rather, a thing that can be kind of fallen into.
~~waterdrop~~