You can use Encounter Database to make them in Sword/Shield saves, then transfer into HOME to get an appropriate HOME tracker.
1. Can only use SWSH. Doing this from any other game will cause HOME to error out.
2. You’re limited to species that exists in SWSH, for obvious reasons. HOME won’t allow entry of non-existent species from SWSH.
3. This method may stop working in the future. Any of such created mons may become blocked by HOME in future updates.
If you’re modifying ANY immutable values (species beyond the evolutionary line, IVs, nature (not stat nature; not the one that can be modified by mints), PID [regardless of shininess], EC etc), you would break the HOME tracker. So don’t do that.