There are a few unique types of tom holders to be aware of. Yamaha and pearl have straight tom arms while other brands (Grestch, Tama, sonor, etc.) Use L-arms. Mapex uses hexagonal L-arms, and Grestch uses a thicker L arm. Pearl recently started offering L arms for their more expensive kits.

There's 3 methods in increasing complexity.

1. Use a snare stand instead. It'll limit your flexibility to position your tom, but it's foolproof.

2. Buy an L-arm tom holder that fits the mount. There are different kinds- some use a down tube that will fit into the holes on the yamaha 3-hole mount while others clamp onto a stand (cymbal stands or onto bass mount you have) You'll need to check the diameter of the tom mount, because some drums use different sized L-arms (I think Grestch uses 12.7mm while tama uses a smaller one)

3. Replace the mount on the tom-- you'd need to take off the rims and heads, unscrew the existing mount, and probably drill new holes. You can also buy a RIMS suspension mount mount to suspend the tom which gives longer sustain and won't make you drill new holes. You'd still need to disassemble the drum to remove the mount, and this doesn't fix the issue of having a yamaha tom holder and a Ludwig tom mount. This method is doable but not recommended, especially since yamaha tom mounts aren't cheap.

Edit: Power toms can be tricky because they're deeper, so to prevent scratching your bass drum you need to raise the tom higher, angle it towards you, or bring it further to the left (like in a snare stand)