Welcome to the forum and I can understand your TG16 cd fantasy lol. I grew up with that setup and just last year was able to reacquire it. Not the most economical route to go but it's a great classic setup.
I been getting more and more curious about neo geo and it seems most PCE fans are into most of the niche consoles like the Saturn, Neo Geo, etc. I been trying to avoid it because of cost but may have to look into it in the future.
Just do what I did. Buy an old arcade cab then get am MVS board for it. MVS Neo Geo games sell for far far far less then the home counterparts, pretty much nothing is out of reach financially with MVS. You should br able to score and old arcade cab from craigslist, the MVS you can get online. Just be sure you get a JAMMA cab. Thats pretty much the standard so that wont be hard. They may have MVS to home converters now, in my day they had them but they were not very reliable.
I have to say, my all time favorite game has to be Bonks Adventure. Thats what kind of got the ball rolling on this whole deal. I played Bonks on the Wii a few weeks ago and had it was just as amazing and fun as I remember it, every single time I play that game its fun for me and very nostalgic all at once. I dont have much experience with the CD games so I dont have any on my fav list yet but here are a few I remember from my collection that I will be buying back
Ninja Spirit. Total classic
Splatterhouse. Who doesnt love this
Military Madness. At first I was like WTF as I never played a TBS game before, then I got hooked!
R-Type. Loved it in the arcade, got it for free with proof of purchase of my TG16. First thing I ever had mailed to me with my name and not my parents!
JJ and Jeff. dont ask me, I just like it the controls are tuff but I find the game amusing.
Of the games Ive played these are my favs and they are the ones I will go for first and the only ones I would buy CIB if given the chance. I would even get them seal
If I already owned an open copy that is.
I already have one game for my collection.... Fighting Street! I saw it in a thrift store back in 97 or 98 and bought it lol!
PS rondo of blood will definitely get purchased. I remember seeing pic in GAMEFAN magazine and praying it would be released here even though I didnt have the CD add on.