diff --git a/sdcflows/fieldmaps.py b/sdcflows/fieldmaps.py
index a9825620f3..c1e1d3eeb9 100644
--- a/sdcflows/fieldmaps.py
+++ b/sdcflows/fieldmaps.py
@@ -55,6 +55,8 @@ class EstimatorType(Enum):
     "bold": EstimatorType.PEPOLAR,
     "dwi": EstimatorType.PEPOLAR,
     "epi": EstimatorType.PEPOLAR,
+    "asl": EstimatorType.PEPOLAR,
+    "m0scan": EstimatorType.PEPOLAR,
     "fieldmap": EstimatorType.MAPPED,
     "magnitude": None,
     "magnitude1": None,
@@ -241,7 +243,7 @@ def __attrs_post_init__(self):
             self.metadata["TotalReadoutTime"] = 0.0
 
         # Check for REQUIRED metadata (depends on suffix.)
-        if self.suffix in ("bold", "dwi", "epi", "sbref"):
+        if self.suffix in ("bold", "dwi", "epi", "sbref", "asl", "m0scan"):
             if "PhaseEncodingDirection" not in self.metadata:
                 raise MetadataError(
                     f"Missing 'PhaseEncodingDirection' for <{self.path}>."
@@ -370,10 +372,12 @@ def __attrs_post_init__(self):
 
         # Fieldmap option 2: PEPOLAR (and fieldmap-less or ANAT)
         # IMPORTANT NOTE: fieldmap-less approaches can be considered PEPOLAR with RO = 0.0s
-        pepolar_types = suffix_set.intersection(("bold", "dwi", "epi", "sbref"))
+        pepolar_types = suffix_set.intersection(("bold", "dwi", "epi", "sbref", "asl", "m0scan"))
         anat_types = suffix_set.intersection(("T1w", "T2w"))
         _pepolar_estimation = (
-            len([f for f in suffix_list if f in ("bold", "dwi", "epi", "sbref")]) > 1
+            len(
+                [f for f in suffix_list if f in ("bold", "dwi", "epi", "sbref", "asl", "m0scan")]
+            ) > 1
         )
 
         if _pepolar_estimation and not anat_types:
diff --git a/sdcflows/utils/wrangler.py b/sdcflows/utils/wrangler.py
index c884c63519..f046642777 100644
--- a/sdcflows/utils/wrangler.py
+++ b/sdcflows/utils/wrangler.py
@@ -63,9 +63,9 @@ def find_estimators(
         One of more session identifiers. If None, all sessions will be used.
     fmapless : :obj:`bool` or :obj:`set`
         Indicates if fieldmap-less heuristics should be executed.
-        When ``fmapless`` is a :obj:`set`, it can contain valid BIDS suffices
-        for EPI images (namely, ``"dwi"``, ``"bold"``, or ``"sbref"``).
-        When ``fmapless`` is ``True``, heuristics will use the ``{"bold", "dwi"}`` set.
+        When ``fmapless`` is a :obj:`set`, it can contain valid BIDS suffixes
+        for EPI images (namely, ``"dwi"``, ``"bold"``, ``"asl"``, or ``"sbref"``).
+        When ``fmapless`` is ``True``, heuristics will use the ``{"bold", "dwi", "asl"}`` set.
     force_fmapless : :obj:`bool`
         When some other fieldmap estimation methods have been found, fieldmap-less
         estimation will be skipped except if ``force_fmapless`` is ``True``.
@@ -306,7 +306,7 @@ def find_estimators(
     sessions = sessions or layout.get_sessions(subject=subject) or [None]
     fmapless = fmapless or {}
     if fmapless is True:
-        fmapless = {"bold", "dwi"}
+        fmapless = {"bold", "dwi", "asl"}
 
     estimators = []
 
@@ -434,7 +434,7 @@ def find_estimators(
                 all_targets.append(target)
 
             # If sbrefs are targets, then the goal is generally to estimate with epi+sbref
-            # and correct bold/dwi
+            # and correct bold/dwi/asl
             sbrefs = [
                 target for target in all_targets if target.entities["suffix"] == "sbref"
             ]
@@ -443,7 +443,7 @@ def find_estimators(
                 intent_map = []
                 for sbref in sbrefs:
                     ents = sbref.get_entities(metadata=False)
-                    ents["suffix"] = ["bold", "dwi"]
+                    ents["suffix"] = ["bold", "dwi", "asl"]
                     intent_map.append(
                         [
                             target
@@ -540,8 +540,10 @@ def find_anatomical_estimators(
     base_entities : :class:`dict`
         Entities to use to query for images. These should include any filters.
     suffixes : :class:`list`
-        EPI suffixes, for example ``["bold", "dwi"]``. Associated ``"sbref"``\s
+        EPI suffixes, for example ``["bold", "dwi", "asl"]``. Associated ``"sbref"``\s
         will be found and used in place of BOLD/diffusion EPIs.
+        Similarly, ``"m0scan"``\s associated with ASL runs with the ``IntendedFor`` or
+        ``B0FieldIdentifier`` metadata will be used in place of ASL runs.
     """
 
     from .epimanip import get_trt
@@ -555,6 +557,7 @@ def find_anatomical_estimators(
         datatype = {
             "bold": "func",
             "dwi": "dwi",
+            "asl": "perf",
         }[suffix]
         candidates = layout.get(
             **{