Give the Splinter Cell series a try. Especially Conviction and Blacklist. They are more action oriented than the classic trilogy and have pretty fun semi open-ended stealth.
this, but blacklist has VASTLY superior sneaking. conviction was a big step towards action with a heavy cost for the sneaking aspects (although I still think its great, it just didn't feel sneaky enough). blacklist was them realising their mistake, and clearly working hard to make sneaking viable (and awesome) again without sacrificing the action (MOST of the game can be done pure sneaking or pure action, but different sections are frequently easier to go one way than the other... fight 6-7 guys... okay not a problem, but you can walk right past them with a ledge and some timing). I feel its better in every way. the FEW sections that force action were a downer though. one section on a train was just AWFUL from a design perspective. on the hard mode it took me 30+ attempts spamming the biggest AoE gadgets.
but overall blacklist was brilliant.
hitman collection is also an amazing choice although personally I would ignore hitman 2, or run it through on easy. it has dated badly and is full of issues and poorly designed levels.
contracts is just so 'tight' truely excellent . blood money changed a LOT. some things got better, others worse. lacked the same high quality level designs (from a gameplay perspective, blood money LOOKS prettier than contracts... and the levels have 'more going on'... but at a significant cost).
I love games with stealth element like mgs4 and tlou
So...you don't like good stealth games then?
Anyway, seriously, get the Splinter Cell HD Trilogy, get Splinter Cell: Blacklist, get the MGS HD Collection or Legacy Collection (MGS4's stealth was a joke!), and you might give Deus Ex: Human Revolution a try. Also, Thief if you're okay with 1st person and medieval settings.