Suspect #2

Suspect #3

Suspect #4

Suspect #1: I believe xPachyveria glauca.
#2: looks like an intergeneric (using, Graptopetalum or Sedum or Pachyphytum) might have to wait till you have blooms to nail it down
#3 & 4, both being mesembs ~you ought to get a response from Rian or Ryan (beachplants or hanzrobo)

pretty sure 2 is a Graptoveria.

Suspect #5

Crassula perforata?

Suspect #6

A form of Crassula?
Smaller leaves, darker tones.

Suspect #7

I just know it's a Delosperma; any ideas which one?

Suspect #8

Furry leaves, have seen other specimens with green-coloured 'fur'.

5. There have been a few discussions about this in the past. I still don't think it is clear about its ID. In the old days, I could only find this as a Crassula perforata, Large Form. In other places since, I've found it given the name 'Giant'.

6. Crassula perforata. I can't tell from this pic, but it may be f. variegata as well.

7. Delosperma echinatum

8. Kalanchoe eriophylla (it has nice pink flowers, IMO)

Suspect #9

Crassula capitella?

Suspect #10

Unsure where to start with this one. Thick-ish leaves.

Suspect #11

A Gasteria, but unsure which one

Sorry, I don't know any of these IDs, but on this last Gasteria in particular, I repeat my earlier comment that you're planting these too deeply. The base of that plant is likely to get wet & then rot out if you don't lift the base of the plant higher out of the mix.

You need to raise that up out of the mix so that only the roots (if any) are in mix. The base of its growth needs to be up out of the mix or you're likely to have rot problems.

Suspect #4: Not certain but has many characteristics of Bergeranthus

YES! I agree with the Bergeranthus comment. It's definitely that. . . . just what species? And I have two; one's got thinner sharper leaves and the others' leaves are more blunt and fat.

A type of Bergeranthus sounds good to me for #4.

#9 Crassula capitella ssp thyrsiflora

#10 Crassula capitella (may be 'Campfire' if it turns red) Some call this Giant Form

#11 Gasteria -another tough one to figure out which species. I'll get back to you if I think of one.

#4 just what species is it ?

Brace yourself for the famed generic answer: Difficult to tell with out flowering. If pic had flowering with the as seen nicely shaped leaves it would be super easy to narrow down which exact one of the few species it is.

What to look for:
Flowerings are a small daisy shaped yellow toned in coloring a range of solid yellow as others have the yellow blending and or mixing into different orange colorings as markings.

When to look for them :
Buds should last for a few days during early summers end just when times of longest to shorter sun light take place.

Fair warning: #4 regardless of it's exact species none of them are flower common among most messebs as they tend to open in the later part of the bright sunny days closing at dusk to darker times of day for about five to seven days.

I don't have summers here, I live on the tropical line in a country called Malaysia. I'm really unsure of how to induce flowering on these guys.

Any advice?

Ohhh I see Malaysia is a bit different from me
When #4 was in flowering for me
Sun time here at longest is about 15.75 hours buds where easy to see and nearly ready to open and did so with lesser sun light time and finished flowering 12 days later.

Temps where in the 80 - 92 F range at the same sun times mentioned and the time of day mine opened was 16:00 hours to 23:00 hours

For now I can say your heaviest rain season might be a bit much for #4 although the soil you have it in does look nice enough to drain fast enough. Again odd #4 Messeb like water more than most succulents but doesn't like wet roots for to long of time in days the top will rot out on you if to wet to long.

Your other plants would certainly benefit with a lot less water than #4 can handle

Other than a season rain over watering concern I have think you'll do very well with yours. As caution I think it would be best if you could provide a tarp or tent for some over head covering during your heavy tropical rain season over the entire garden bed.

I and others here appreciate you and want to see your plants in there best of flowering later too. In all honesty it's best to tell you to talk to some of your local people with the same succulent garden passion as yours and ask them what they do.