Here on the forum I would HIGHLY recommend The Porthecrawl Witness, there are 4 romance options, 3 of them are gender selectable, and one of them is locked to male, which leaves you with 4 potential male ROs.
The passenger, without a doubt, it has 4 romance options, one is locked to female, one is locked to male, and the other two can be chosen from. I can not express enough how good this game (and romance) is.
If you don’t mind VN, I also recommend Perfumare, it has a very interesting setting with more of a dark vibe (but not super dark), this one as 3 romance options, 2 of them being male. It has an android port, so you can play it on your phone too (no such luck for iphone users).
Now, for IF games hosted on itchi.io, I recommend you Superstition, book 1 and book 2, there is 3 male romances that are literally some of my favourite ever. They all feel extremely fleshed out, and considering your love of Adam and Orion I can guarantee you will love Rahim (this RO appears on book 2).
The rest of this author’s games are also wonderful, with very compelling romances, but sadly the others are demos.
Tale of Crowns is another good choice, 4 romance options, all of them can be set to male.
I would GREATLY encourage romancing Chen, from FH, I don’t know your gender or sexual preference, so let me say just in case that he can only be romanced with male MC as of now (I think nb can be an option but I’m not sure yet).
Those are the ones I can think of the top of my head, but if any others come to mind I’ll be sure to add them.
Edit: I can’t believe I forgot the Golden Rose, Hadrian is an ABSOLUTE cutie and he must be love by everyone thanks.