Hi @Taymindis. With Onsen UI you can still use anything from html5, so don’t worry about those.
For extra provided elements we have a few:ons-button ons-range ons-switch ons-fab (Floating Action Button) ons-input - wrapper for multiple types of <input> (including checkbox and radio etc)
You could also checkout this section of the guide.
And finally while they may not be form elements you may be also interested in:ons-ripple ons-icon ons-progress-bar ons-progress-circular
Also it is possible that I missed something, which is why @Fran-Diox gave you a link to the whole reference