I’m currently typing on Hako Royal Trues, and really like them, and they’re very heavy, and they’re currently on clearance over at Novelkeys, but they’re probably not what you’re thinking of.
They’re a combination of the strong tactile element from Box Royals with the short and heavy spring from Hako Trues. The result is a distinct tactile bump, then a short gap before hitting the spring. The idea is that you never bottom out with these, you use a light touch and bounce off of the spring rather than trying to force your way through it. It takes some time to get used to this, but after a few days I started to really like them.
So if you want to try something different then these are great, but it doesn’t sound like these are what you’re after.
The Aliaz will be heavy for sure - but the springs will really wash-out the already slight bump of the stem.
Question: Would you say you prioritize the strength of the bump, or weight of the bottom-out? (Or maybe a balance of the two?)
Halo Trues actually have a really heavy bottom-out, but the tactile event itself is pretty mild and actuation doesn’t take much pressure. Moyu Blacks aren’t super-heavy when it comes to the spring, but are extra-stout in the tactile bump department. They also have a sharp bottom-out.
I do work on switches as a service, and I do have on-hand some really heavy springs, ranging from those fast-curve Halo ones to slow-curve 150g tall bois. I could whip you up some monster Bobas, or even some of these things with custom 100g springs from Korea.
Cool! Well in that case I do have a few recommendations;
Moyu Blacks / Dark Jades: Sharp, strong bump with a clacky long-pole bottom-out. These might have the strongest bump of any stock tactile switch I can think of - even moreso than Box Royals.
Ink Kangaroos: The bump isn’t super heavy, but it’s very crisp and clear. It’s short and starts right up top; you sort of “break through” it.
Box Royals: Heavy, sharp bump with a very “mechanical” sound due to a few more moving parts - including lots of spring ping before lubing those. These used to be the king of this category, but are starting to get overshadowed. All Box switches suffer from some degree of inconsistencies in sound, feel, and resting position - they do remain unique, though.
NK Blueberries: Honestly a pretty weird switch, but it does sport a unique, strong, sharp bump. Kind of scratchy and awkward, but snappy.
U4Ts: Not too dissimilar from the Moyus, but the bottom-out is less harsh in terms of sound and feel, and the sound is deeper. The bump strength is a bit less, but still quite a bit stronger than average.
Stock Holy Pandas: There are at least two companies that make their own version of a stock holy panda; Drop and Feker (a company that appears to specialize in clones). Strong and snappy - these are pretty much the inspiration for most of the other switches on this list, but at this point I do think they have been surpassed when it comes to sound and feel quality by other options like the U4T and Moyu Blacks. Still, the sound is pretty distinctive and they do feel great - I just recommend tuning them to clean up the rough edges.
There’s always the old reliable Cherry MX Clears, which have a fairly normal ~65gf actuation weight but a ~90gf bottom out. You can paper mod the leaf, or use Cherry MX Blue bottom housings for a tactility bump. If you want a lot more tactility you can put the stems and springs into a Boba housing (with an Outemu Clear slotted top), or a JWK T1 housing.
I also personally find switches with sharp tactile bumps (such as MX Clears) tend to hold their tactility better at higher spring weights.
I really enjoyed the H1 switches from JWK/Durock. They are 78 G linears, and were extremely smooth stock, with decent sound.
They only felt like 72 G, though.
If you like heavy tactiles, you are uniquely positioned to enjoy the OUTEMU Silent Sky stems in the Boba housing. They are said to need at least 68 G in order to function properly with full tactility, so you could run them at 72 or 78 G or something, should be about as tactile as MX Clear.
Bobas don’t need much lube, so you could just lube the springs. But the other suggestions here are great, so should be more than enough to fulfill your ambitions.