Layout specifics
The 68-key arrangement is close to the common 65% standard: full arrows, a right column of nav keys, standard 6.25u spacebar and bottom row. Any keycap set marketed with 65% support fits; full-size sets with a 65% or "child kit" section also work.
Profile freedom
Akko ships this board with their own profiles (often ASA or OEM-like) and sells dozens of themed sets that fit it exactly. Third-party Cherry, OEM, SA, XDA all fit; the 3068B's switches are standard MX and the sockets on hot-swap versions accept 3 and 5-pin switches, so the whole ecosystem is open.
One warning
Akko sells several 3068 variants over the years with slightly different bottom-right layouts. Check your exact unit's right-column sizes against the keycap kit image before buying a niche set; the mainstream sets include enough extras to cover all variants.
Choosing a profile when half your keys live on layers
A 65% board makes you reach nav, function, and media keys through layers, and that changes the profile question. Sculpted profiles like Cherry and OEM assume each row keeps its job; the moment you remap heavily, a sculpted cap can end up with the wrong angle for its position. Uniform profiles, XDA and DSA being the common ones, make every key interchangeable, which suits people who rearrange layouts or move caps between rows so legends match their layer map. The community split is roughly this: typists who leave the layout stock prefer sculpted sets for feel, while tinkerers who remap gravitate to uniform ones for flexibility. Neither choice affects compatibility on the 3068B; both fit.
Shopping older and group-buy sets
The 65% layout only became a default target for keycap designers in recent years. Older sets, particularly group-buy designs from before compact boards took over, often shipped without a 1.75u right Shift or enough 1u keys for the nav column, and clearance listings rarely advertise what is missing. The reliable method: find the kit map image on the listing and physically check it for the 1.75u Shift and a few extra 1u caps beyond what a tenkeyless needs. If the map is not shown, ask or skip. Modern mainstream sets from Akko and the large budget brands are safe almost without exception; it is the beautiful older designs where 3068B buyers get burned.
The stock caps are better than the price suggests
Unlike most budget boards, the 3068B's stock caps on many colorways are thick PBT with dye-sublimated legends, which is exactly the construction people upgrade to on other keyboards. Dye-sub legends are part of the plastic and cannot rub off, and PBT resists the greasy shine that ABS develops. The practical consequence: replacing caps on this board is usually about theme, not quality, so there is no urgency. If you do swap, keep the originals as a full spare set. One hedge worth stating: Akko has shipped many colorways over the years and specs vary between them, so check what your particular unit came with rather than assuming; each theme's product page lists the material and profile.