Oh boy. Be prepared for lots of different answers.
What do you like to shoot (subjects, lighting, etc.), and how (handheld, tripod)? Answer those questions first. The choice of film speed would depend on what sort of shooting you do, how big/small you plan on printing etc.
I like to shoot outdoors; "street" shooting (whatever that is these days), events, landscapes. I'm not sure of my printing yet....a lot of questions to answer in that department but it will probably be digi%$ (can I write that word here?). I don't see my own darkroom. But I haven't seen it the 3 other times I've set one up <grin>.
Once you choose the film, pick pretty much any general purpose developer.
And I'd suggest not making too much of the one-film-one-developer thing. Of course keeping things simple is a good thing, but in moderation. Most current films have fairly similar, long scales, and it doesn't take all that much to get them to work very well in broad array of general purpose developers. I'm about as critical as it gets, and I'd still say if I had to switch films it wouldn't take much more than a few rolls/sheets to get to know it.