Recommending something is difficult if you have little or no experience. Therefore, only experiences and suggestions.
Ochroleucus seems to be straightforward indeed. However, it is considered evergreen, although it usually takes a rather short break. For me, it was about 4 months long. Previously, the about 13-14 months stood there with 2 leaves and also bloomed (1 day strongly fragrant with 2 maxima at intervals of about 12 h). However, the leaf itself is already attractive with the dark green shiny coloration. Is also coarser than in other species. Propagation via leaf bulbs or leaf cuttings. I had a total of 9 bulbilles, but unfortunately nothing is happening yet (I probably have to take a look).
A. muelleri also becomes quite large and, in my opinion, is more vigorous than A. bulbifer. Propagation as with Bulbifer via leaf bulbs and seeds, which requires correspondingly large plants for a significant propagation. Which is probably one of several reasons why the beginner plant Bulbifer is not particularly common.
A. yunnanensis might also be worth considering. Otherwise, with Konjac, as far as size is concerned, apart from Muelleri, only Paeonifolius and a few other plants that are not really suitable for beginners can keep up.